| /linux-4.1.27/tools/testing/selftests/powerpc/pmu/ |
| D | count_instructions.c | 30 u64 overhead, bool report) in do_count_loop() argument
45 expected = instructions + overhead; in do_count_loop()
53 printf("Looped for %llu instructions, overhead %llu\n", instructions, overhead); in do_count_loop()
76 u64 current, overhead; in determine_overhead() local
80 overhead = events[0].result.value; in determine_overhead()
85 if (current < overhead) { in determine_overhead()
86 printf("Replacing overhead %llu with %llu\n", overhead, current); in determine_overhead()
87 overhead = current; in determine_overhead()
91 return overhead; in determine_overhead()
97 u64 overhead; in test_body() local
[all …]
|
| /linux-4.1.27/tools/testing/selftests/powerpc/pmu/ebb/ |
| D | instruction_count_test.c | 26 uint64_t overhead, bool report) in do_count_loop() argument
46 expected = instructions + overhead; in do_count_loop()
51 printf("Looped for %lu instructions, overhead %lu\n", instructions, overhead); in do_count_loop()
72 uint64_t current, overhead; in determine_overhead() local
76 overhead = event->result.value; in determine_overhead()
81 if (current < overhead) { in determine_overhead()
82 printf("Replacing overhead %lu with %lu\n", overhead, current); in determine_overhead()
83 overhead = current; in determine_overhead()
87 return overhead; in determine_overhead()
112 uint64_t overhead; in instruction_count() local
[all …]
|
| /linux-4.1.27/drivers/net/fddi/skfp/ |
| D | ess.c | 105 static int process_bw_alloc(struct s_smc *smc, long int payload, long int overhead);
124 u_long payload, overhead ; in ess_raf_received_pack() local
262 overhead = ((struct smt_p_3210 *)p)->mib_overhead ; in ess_raf_received_pack()
264 DB_ESSN(2,"payload= %lx overhead= %lx\n",payload,overhead) ; in ess_raf_received_pack()
269 (void)process_bw_alloc(smc,(long)payload,(long)overhead) ; in ess_raf_received_pack()
312 overhead = ((struct smt_p_3210 *)p)->mib_overhead ; in ess_raf_received_pack()
316 DB_ESSN(2,"payload= %lx overhead= %lx\n",payload,overhead) ; in ess_raf_received_pack()
321 if(!process_bw_alloc(smc,(long)payload,(long)overhead)) in ess_raf_received_pack()
378 static int process_bw_alloc(struct s_smc *smc, long int payload, long int overhead) in process_bw_alloc() argument
429 if (payload > MAX_PAYLOAD || overhead > 5000) { in process_bw_alloc()
[all …]
|
| /linux-4.1.27/drivers/net/wireless/rt2x00/ |
| D | rt2x00crypto.c | 79 unsigned int overhead = 0; in rt2x00crypto_tx_overhead() local
82 return overhead; in rt2x00crypto_tx_overhead()
89 overhead += key->icv_len; in rt2x00crypto_tx_overhead()
92 overhead += key->iv_len; in rt2x00crypto_tx_overhead()
96 overhead += 8; in rt2x00crypto_tx_overhead()
99 return overhead; in rt2x00crypto_tx_overhead()
|
| /linux-4.1.27/net/sctp/ |
| D | output.c | 72 packet->size = packet->overhead; in sctp_packet_reset()
112 size_t overhead; in sctp_packet_init() local
122 overhead = sp->pf->af->net_header_len; in sctp_packet_init()
124 overhead = sizeof(struct ipv6hdr); in sctp_packet_init()
126 overhead += sizeof(struct sctphdr); in sctp_packet_init()
127 packet->overhead = overhead; in sctp_packet_init()
409 skb_reserve(nskb, packet->overhead + MAX_HEADER); in sctp_packet_transmit()
708 if (chunk->skb->len + q->out_qlen >= transport->pathmtu - packet->overhead) in sctp_packet_can_append_data()
|
| /linux-4.1.27/tools/perf/Documentation/ |
| D | perf-top.txt | 119 local_weight, abort, in_tx, transaction, overhead, sample, period.
125 overhead, overhead_sys, overhead_us, overhead_children, sample and period.
140 percentage of the overhead column. See --percentage for more info.
144 percentage of the overhead column. See --percentage for more info.
148 percentage of the overhead column. See --percentage for more info.
187 Do not show entries which have an overhead under that percent.
191 Determine how to display the overhead percentage of filtered entries.
|
| D | perf-report.txt | 42 the overhead column. See --percentage for more info.
52 the overhead column. See --percentage for more info.
57 the overhead column. See --percentage for more info.
87 - overhead: Overhead percentage of sample
119 overhead, overhead_sys, overhead_us, overhead_children, sample and period.
173 - graph: use a graph tree, displaying absolute overhead rates.
305 Do not show entries which have an overhead under that percent.
309 Determine how to display the overhead percentage of filtered entries.
|
| D | perf-diff.txt | 105 Determine how to display the overhead percentage of filtered entries.
|
| D | perf-record.txt | 176 Do not update the buildid cache. This saves some overhead in situations
|
| /linux-4.1.27/fs/ext4/ |
| D | resize.c | 74 ext4_grpblk_t overhead; in ext4_group_overhead_blocks() local
75 overhead = ext4_bg_num_gdb(sb, group); in ext4_group_overhead_blocks()
77 overhead += 1 + in ext4_group_overhead_blocks()
79 return overhead; in ext4_group_overhead_blocks()
94 unsigned overhead; in verify_group_input() local
106 overhead = ext4_group_overhead_blocks(sb, group); in verify_group_input()
107 metaend = start + overhead; in verify_group_input()
109 input->blocks_count - 2 - overhead - sbi->s_itb_per_group; in verify_group_input()
257 unsigned overhead; in ext4_alloc_group_tables() local
274 overhead = ext4_group_overhead_blocks(sb, src_group); in ext4_alloc_group_tables()
[all …]
|
| D | super.c | 3354 ext4_fsblk_t overhead = 0; in ext4_calculate_overhead() local
3369 overhead = EXT4_B2C(sbi, le32_to_cpu(es->s_first_data_block)); in ext4_calculate_overhead()
3378 overhead += blks; in ext4_calculate_overhead()
3385 overhead += EXT4_NUM_B2C(sbi, sbi->s_journal->j_maxlen); in ext4_calculate_overhead()
3387 sbi->s_overhead = overhead; in ext4_calculate_overhead()
5134 ext4_fsblk_t overhead = 0, resv_blocks; in ext4_statfs() local
5140 overhead = sbi->s_overhead; in ext4_statfs()
5144 buf->f_blocks = ext4_blocks_count(es) - EXT4_C2B(sbi, overhead); in ext4_statfs()
|
| /linux-4.1.27/Documentation/mmc/ |
| D | mmc-async-req.txt | 4 How significant is the cache maintenance overhead?
6 pre-fetch makes the cache overhead relatively significant. If the DMA
8 transfer, the DMA preparation overhead would not affect the MMC performance.
64 Pseudocode to handle is_first_req scenario with minimal prepare overhead:
|
| /linux-4.1.27/Documentation/virtual/ |
| D | paravirt_ops.txt | 22 known that the overhead of indirect call isn't very important.
26 are called frequently and are performance critical. The overhead is
|
| /linux-4.1.27/Documentation/usb/ |
| D | ohci.txt | 16 - improved robustness; bugfixes; and less overhead
26 to overhead in IRQ processing. When interrupt transfers are queued, those
|
| /linux-4.1.27/drivers/net/fddi/skfp/h/ |
| D | smt.h | 805 struct smt_p_3210 overhead ; /* current SBA overhead */ member
822 struct smt_p_3210 overhead ; /* current SBA overhead */ member
838 struct smt_p_3210 overhead ; /* current SBA overhead */ member
860 struct smt_p_3210 overhead ; /* current SBA overhead */ member
|
| /linux-4.1.27/include/net/ |
| D | sch_generic.h | 742 int slot = pktlen + rtab->rate.cell_align + rtab->rate.overhead; in qdisc_l2t()
771 u16 overhead; member
779 len += r->overhead; in psched_l2t_ns()
802 res->overhead = r->overhead; in psched_ratecfg_getrate()
|
| /linux-4.1.27/net/mac80211/ |
| D | rc80211_minstrel_ht.c | 331 nsecs = 1000 * mi->overhead / MINSTREL_TRUNC(mi->avg_ampdu_len); in minstrel_ht_get_tp_avg()
791 unsigned int overhead = 0, overhead_rtscts = 0; in minstrel_calc_retransmit() local
814 overhead = mi->overhead; in minstrel_calc_retransmit()
819 tx_time = ctime + 2 * (overhead + tx_time_data); in minstrel_calc_retransmit()
829 tx_time += ctime + overhead + tx_time_data; in minstrel_calc_retransmit()
1127 mi->overhead = ieee80211_frame_duration(sband->band, 0, 60, 1, 1, 0); in minstrel_ht_update_caps()
1128 mi->overhead += ack_dur; in minstrel_ht_update_caps()
1129 mi->overhead_rtscts = mi->overhead + 2 * ack_dur; in minstrel_ht_update_caps()
|
| D | rc80211_minstrel_ht.h | 84 unsigned int overhead; member
|
| D | Kconfig | 111 The overhead in this option is that all the messages
|
| /linux-4.1.27/net/netlink/ |
| D | Kconfig | 9 reduces overhead by avoiding copying data between kernel- and
|
| /linux-4.1.27/fs/fscache/ |
| D | Kconfig | 21 The gathering of statistics adds a certain amount of overhead to
38 The generation of this histogram adds a certain amount of overhead to
|
| /linux-4.1.27/Documentation/netlabel/ |
| D | lsm_interface.txt | 40 sidestep much of this overhead once a mapping has been established. Once the
47 bypassed as well which should result in a significant reduction in overhead.
|
| /linux-4.1.27/Documentation/timers/ |
| D | timer_stats.txt | 6 but not used it has almost zero runtime overhead, and a relatively small
7 data structure overhead. Even if collection is enabled runtime all the
|
| D | timers-howto.txt | 62 stepped PC!) the overhead of setting up the hrtimers
|
| D | hrtimers.txt | 29 - the unpredictable [O(N)] overhead of cascading leads to delays which
51 largely expect the timer subsystem to have near-zero overhead.
|
| D | highres.txt | 157 calls when an interrupt happens. The overhead would be much larger than the
|
| D | NO_HZ.txt | 43 other than increasing the overhead of switching to and from idle and
|
| /linux-4.1.27/kernel/trace/ |
| D | Kconfig | 87 Adds a very slight overhead to tracing when enabled.
147 (the bootup default), then the overhead of the instructions is very
186 (Note that kernel size and overhead increase with this option
210 (Note that kernel size and overhead increase with this option
265 When this is enabled, this adds a little more overhead to the
270 and already adds the overhead (plus a lot more).
290 Either of the above profilers adds a bit of overhead to the system.
296 No branch profiling. Branch profiling adds a bit of overhead.
309 Note: this will add a significant overhead; only turn this
324 This configuration, when enabled, will impose a great overhead
[all …]
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| D | trace_functions_graph.c | 75 { TRACER_OPT(funcgraph-overhead, TRACE_GRAPH_PRINT_OVERHEAD) },
|
| /linux-4.1.27/arch/x86/xen/ |
| D | Kconfig | 47 Enabling this option may incur a significant performance overhead.
|
| /linux-4.1.27/fs/autofs4/ |
| D | Kconfig | 6 overhead in the already-mounted case; this is unlike the BSD
|
| /linux-4.1.27/drivers/gpu/vga/ |
| D | Kconfig | 18 multiple GPUS. The overhead for each GPU is very small.
|
| /linux-4.1.27/arch/xtensa/ |
| D | Kconfig.debug | 21 values to reduce code size and remove unnecessary overhead from
|
| /linux-4.1.27/Documentation/vm/ |
| D | page_owner.txt | 28 boot option, runtime overhead is marginal. If disabled in runtime, it
30 memory overhead. And, page owner inserts just two unlikely branches into
|
| D | cleancache.txt | 101 in many environments with negligible overhead by improving the
203 overhead is negligible even in worst case workloads. Basically
204 cleancache replaces I/O with memory-copy-CPU-overhead; on older
|
| D | frontswap.txt | 121 what's the space/time overhead of frontswap?
124 nothingness and the only overhead is a few extra bytes per swapon'ed
130 CPU overhead is still negligible -- and since every frontswap fail
|
| D | slub.txt | 92 in order to reduce overhead and increase cache hotness of objects.
114 list_lock once in a while to deal with partial slabs. That overhead is
|
| D | balance | 24 of incurring the overhead of regular zone balancing.
|
| D | numa | 143 attached to memoryless nodes would always incur the fallback path overhead
|
| D | transhuge.txt | 194 reading it frequently will incur overhead.
229 monitor this overhead.
|
| D | numa_memory_policy.txt | 358 on different NUMA nodes. This extra overhead can be avoided by always
|
| /linux-4.1.27/Documentation/networking/ |
| D | netdevices.txt | 26 include any link layer protocol overhead. Upper layer protocols must
28 than the mtu. The MTU does not include link layer header overhead, so
|
| D | batman-adv.txt | 16 duce the overhead to a minimum. It does not depend on any (other)
101 sive to topology changes, but will also increase the overhead.
|
| D | dm9000.txt | 140 To reduce the overhead for the internal PHY, there is now the option
|
| D | netlink_mmap.txt | 9 overhead of unicast receive and transmit operations. Some netlink subsystems
|
| D | eql.txt | 364 289284 bytes of data. If there were no overhead (packet headers,
|
| D | filter.txt | 582 minimal performance overhead over two steps, that is, C -> eBPF -> native code.
661 - Introduces bpf_call insn and register passing convention for zero overhead
|
| D | ppp_generic.txt | 187 transmitted as single fragments, thus reducing the overhead of
|
| D | ip-sysctl.txt | 189 Count buffering overhead as bytes/2^tcp_adv_win_scale
1518 address in this case adds little overhead and eliminates a potential
|
| D | rxrpc.txt | 689 (4) Avoid the overhead of using the recvmsg() call. RxRPC messages can be
|
| /linux-4.1.27/Documentation/RCU/ |
| D | whatisRCU.txt | 107 but RCU provides implicit low-overhead communication between readers
189 synchronize_rcu()'s overhead must also be quite small.
259 ugly and incur unnecessary overhead on Alpha CPUs.
316 order to amortize their overhead over many uses of the corresponding APIs.
557 familiar locking primitives. Its overhead makes it a non-starter for
644 read-side overhead is precisely zero, at least on non-Alpha CPUs.
669 overhead is -negative-.
977 overhead is -negative-.
989 One can argue that the overhead of RCU in this
992 the overhead of RCU is merely zero, and that replacing
[all …]
|
| D | arrayRCU.txt | 29 this situation, which would also have minimal read-side overhead as long
|
| D | checklist.txt | 14 tool for the job. Yes, RCU does reduce read-side overhead by
15 increasing write-side overhead, which is exactly why normal uses
387 Second, grace-period-detection overhead is amortized only
|
| D | RTFP.txt | 14 overhead.
45 tracking imposes significant read-side overhead, which is undesirable
117 impose significant read-side overhead in the form of memory barriers.
266 completely unacceptable overhead in systems with large numbers
299 completely unacceptable overhead in systems with large numbers
391 avoid synchronization overhead by using possibly-stale data.
2382 RCU updates, RCU grace-period batching, update overhead,
2663 RCU updates, RCU grace-period batching, update overhead,
|
| D | rcubarrier.txt | 7 very low-overhead readers that are immune to deadlock, priority inversion,
|
| D | stallwarn.txt | 38 some overhead. Therefore, under CONFIG_PROVE_RCU, the
|
| /linux-4.1.27/drivers/staging/slicoss/ |
| D | TODO | 24 - wasted overhead of extra stats
|
| /linux-4.1.27/fs/cachefiles/ |
| D | Kconfig | 32 The generation of this histogram adds a certain amount of overhead to
|
| /linux-4.1.27/fs/squashfs/ |
| D | Kconfig | 9 are very small and all blocks are packed to minimise data overhead.
17 embedded systems where low overhead is needed. Further information
161 memory overhead.
|
| /linux-4.1.27/fs/jfs/ |
| D | Kconfig | 43 results in very little overhead.
|
| /linux-4.1.27/Documentation/filesystems/ |
| D | squashfs.txt | 7 minimise data overhead. Block sizes greater than 4K are supported up to a
12 block device/memory systems (e.g. embedded systems) where low overhead is
156 This scheme has the advantage that it doesn't require extra memory overhead
227 To reduce overhead in inodes, rather than storing the on-disk
|
| D | f2fs.txt | 14 tree and high cleaning overhead.
240 reduce the space overhead. The default value is 0.
545 overhead under high utilization. Contrarily, the threaded log scheme suffers
|
| D | romfs.txt | 49 name). The maximum overhead for any non-empty file is the header, and
|
| D | autofs4-mount-control.txt | 138 often it can introduce significant overhead when there are many entries
156 the mount table which has proved to be a big overhead for users with
|
| D | logfs.txt | 110 the GC overhead later. Each type of distinc life expectency (vim) can
|
| D | gfs2-glocks.txt | 125 try and reduce the overhead of gathering them. They are also
|
| D | xfs-self-describing-metadata.txt | 87 little overhead. Adding support for larger integrity fields and/or algorithms
|
| D | path-lookup.txt | 134 hlist-->| N-+-------->| N-+-> impose a measurable performance overhead
|
| D | ext2.txt | 82 less wasted space per file, but require slightly more accounting overhead,
|
| D | relay.txt | 62 overhead mechanism for conveying kernel data to userspace. While the
|
| D | ext4.txt | 84 * extent format reduces metadata overhead (RAM, IO for access, transactions)
|
| D | xfs-delayed-logging-design.txt | 489 transaction. While some of this is fixed overhead, much of it is dependent on
|
| /linux-4.1.27/arch/powerpc/kvm/ |
| D | Kconfig | 122 kvm/vm#/vcpu#/timings. The overhead is of the order of 30 - 40
136 The overhead is relatively small, however it is not recommended for
|
| /linux-4.1.27/include/uapi/linux/ |
| D | pkt_sched.h | 87 unsigned short overhead; member
99 int overhead; member
|
| /linux-4.1.27/drivers/usb/host/ |
| D | xhci.c | 2095 if (interval_bw->overhead[LS_OVERHEAD_TYPE]) in xhci_get_largest_overhead()
2097 if (interval_bw->overhead[FS_OVERHEAD_TYPE]) in xhci_get_largest_overhead()
2203 unsigned int overhead = 0; in xhci_check_bw_table() local
2291 if (interval_overhead > overhead) in xhci_check_bw_table()
2292 overhead = interval_overhead; in xhci_check_bw_table()
2300 bw_added = packets_transmitted * (overhead + packet_size); in xhci_check_bw_table()
2311 overhead = 0; in xhci_check_bw_table()
2319 overhead = interval_overhead; in xhci_check_bw_table()
2339 bw_used += overhead + packet_size; in xhci_check_bw_table()
2438 interval_bw->overhead[LS_OVERHEAD_TYPE] -= 1; in xhci_drop_ep_from_interval_table()
[all …]
|
| D | xhci.h | 909 unsigned int overhead[3]; member
|
| /linux-4.1.27/arch/cris/arch-v10/lib/ |
| D | checksum.S | 24 ;; this overhead is why we have a check above for breakeven length
|
| D | checksumcopy.S | 28 ;; this overhead is why we have a check above for breakeven length
|
| /linux-4.1.27/kernel/ |
| D | Kconfig.preempt | 49 and a slight runtime overhead to kernel code.
|
| /linux-4.1.27/net/sched/ |
| D | sch_tbf.c | 137 if (len > r->overhead) in psched_ns_t2l()
138 len -= r->overhead; in psched_ns_t2l()
|
| D | sch_generic.c | 963 r->overhead = conf->overhead; in psched_ratecfg_precompute()
|
| D | sch_api.c | 546 pkt_len = skb->len + stab->szopts.overhead; in __qdisc_calculate_pkt_len()
|
| /linux-4.1.27/net/batman-adv/ |
| D | Kconfig | 59 reduce the air overhead while improving the reliability of
|
| /linux-4.1.27/Documentation/block/ |
| D | null_blk.txt | 49 1: Soft-irq. Uses IPI to complete IOs across CPU nodes. Simulates the overhead
|
| D | biodoc.txt | 104 generic processing an overhead, while for less capable devices the
403 through layered drivers (lvm, md, evms), with minimal overhead.
747 To minimize struct request and queue overhead, the tag helpers utilize some
|
| /linux-4.1.27/Documentation/scsi/ |
| D | advansys.txt | 70 problems. Enabling assertions will add a small overhead to the
78 of the driver execution image and add overhead to the execution of
139 size of the driver execution image and add minor overhead to
|
| D | FlashPoint.txt | 37 automation technology, which minimizes SCSI command overhead and reduces
|
| D | ChangeLog.ncr53c8xx | 454 supported without script processor and PCI traffic overhead.
|
| /linux-4.1.27/fs/ext2/ |
| D | super.c | 1375 unsigned long i, overhead = 0; in ext2_statfs() local
1388 overhead = le32_to_cpu(es->s_first_data_block); in ext2_statfs()
1396 overhead += ext2_bg_has_super(sb, i) + in ext2_statfs()
1403 overhead += (sbi->s_groups_count * in ext2_statfs()
1405 sbi->s_overhead_last = overhead; in ext2_statfs()
|
| /linux-4.1.27/Documentation/arm/ |
| D | kernel_user_helpers.txt | 20 code, the overhead of a VDSO indirect far call would add a measurable
21 overhead to such minimalistic operations.
|
| /linux-4.1.27/drivers/net/wireless/brcm80211/ |
| D | Kconfig | 78 issues. This option adds a small amount of overhead when tracing
|
| /linux-4.1.27/fs/f2fs/ |
| D | Kconfig | 8 of wandering tree and high cleaning overhead.
|
| /linux-4.1.27/Documentation/ |
| D | robust-futexes.txt | 76 This huge overhead forced the creation of CONFIG_FUTEX_ROBUST so that
77 normal kernels can turn it off, but worse than that: the overhead makes
181 So there is virtually zero overhead for tasks not using robust futexes,
|
| D | lockup-watchdogs.txt | 63 between fast response to lockups and detection overhead.
|
| D | static-keys.txt | 36 Although the overhead of this check is small, it increases when the memory
39 in the kernel this overhead may become more of an issue. In addition,
|
| D | kprobes.txt | 172 sysctl(8)), Kprobes tries to reduce probe-hit overhead by using a jump
629 the entry to that function adds essentially no overhead.
631 Here are sample overhead figures (in usec) for different architectures.
647 process. Here are sample overhead figures (in usec) for x86 architectures.
|
| D | iostats.txt | 39 you'll avoid the overhead of 50, 100, or 500 or more opens/closes with
|
| D | vfio.txt | 20 field, also benefit from low-overhead, direct device access from
75 reducing the overhead both to the platform (reduced TLB thrashing,
|
| D | this_cpu_ops.txt | 22 without the typical synchronization overhead, but still provide some
|
| D | kernel-per-CPU-kthreads.txt | 206 reduces or even eliminates vmstat overhead for some
|
| D | workqueue.txt | 266 Ignoring all other tasks, works and processing overhead, and assuming
|
| D | bcache.txt | 443 metadata overhead. Average is the average priority of cache buckets.
|
| D | dma-buf-sharing.txt | 308 For some cases the overhead of kmap can be too high, a vmap interface
|
| D | kernel-parameters.txt | 592 cut the overhead, others just disable the usage. So
3051 CPUs. Larger numbers reduces the wakeup overhead
3053 that same overhead on each group's leader.
3408 of objects the smaller the overhead of tracking slabs
3715 can add overhead.
4018 overhead.
|
| D | kmemcheck.txt | 125 time overhead is not incurred, and the kernel will be almost as fast
|
| D | CodingStyle | 912 overhead. However, this approach still allows the C compiler to see the code
|
| D | memory-barriers.txt | 1413 tmp onto the stack. The overhead of this saving and later restoring
1656 barriers unnecessarily impose overhead on UP systems. They may, however, be
|
| /linux-4.1.27/arch/microblaze/ |
| D | Kconfig | 235 will reduce software overhead at each page boundary, allow
238 overhead. However the utilization of memory will increase.
|
| /linux-4.1.27/Documentation/ide/ |
| D | ide-tape.txt | 60 driven and thus has much less CPU overhead.
|
| D | ChangeLog.ide-tape.1995-2002 | 119 * reduce the CPU's overhead when accessing the device,
139 * Reduced CPU overhead a bit by eliminating internal
|
| /linux-4.1.27/lib/ |
| D | Kconfig.kmemcheck | 25 kmemcheck=0, the large memory and CPU overhead is not incurred.
|
| D | Kconfig.debug | 500 feature will introduce an overhead to memory
560 can cause significant overhead, so only enable it in non-production
697 The overhead should be minimal. A periodic hrtimer runs to
764 feature has negligible overhead.
841 that can help debug the scheduler. The runtime overhead of this
853 application, you can say N to avoid the very slight overhead
866 is examined. The runtime overhead introduced is minimal.
949 Note that this feature can introduce significant overhead, so
1046 of more runtime overhead.
|
| D | Kconfig | 408 # This actually supports modular compilation, but the module overhead
|
| /linux-4.1.27/tools/perf/ui/ |
| D | hist.c | 357 HPP_PERCENT_FNS(overhead, period) in HPP_PERCENT_FNS() argument
410 HPP__COLOR_PRINT_FNS("Overhead", overhead),
|
| /linux-4.1.27/fs/ext3/ |
| D | resize.c | 29 unsigned overhead = ext3_bg_has_super(sb, group) ? in verify_group_input() local
32 ext3_fsblk_t metaend = start + overhead; in verify_group_input()
38 input->blocks_count - 2 - overhead - sbi->s_itb_per_group; in verify_group_input()
|
| D | super.c | 2804 ext3_fsblk_t overhead = 0; in ext3_statfs() local
2817 overhead = le32_to_cpu(es->s_first_data_block); in ext3_statfs()
2825 overhead += ext3_bg_has_super(sb, i) + in ext3_statfs()
2834 overhead += ngroups * (2 + sbi->s_itb_per_group); in ext3_statfs()
2838 overhead += sbi->s_journal->j_maxlen; in ext3_statfs()
2840 sbi->s_overhead_last = overhead; in ext3_statfs()
|
| /linux-4.1.27/arch/sh/ |
| D | Kconfig.debug | 27 drops below a certain limit. Saying Y here will add overhead to
|
| /linux-4.1.27/Documentation/accounting/ |
| D | taskstats.txt | 152 overhead. If only a few fields need to be added, then 1. is the preferable
153 path since the kernel and userspace don't need to incur the overhead of
|
| /linux-4.1.27/fs/ntfs/ |
| D | Kconfig | 45 overhead, but enabling debug messages results in very significant
|
| /linux-4.1.27/net/irda/ |
| D | Kconfig | 42 (watch, beacon) without the overhead of the IrDA protocol (no handshaking,
|
| /linux-4.1.27/tools/perf/ui/gtk/ |
| D | hists.c | 66 __HPP_COLOR_PERCENT_FN(overhead, period) in __HPP_COLOR_PERCENT_FN() argument
|
| /linux-4.1.27/Documentation/locking/ |
| D | rt-mutex.txt | 41 locking overhead when locking an uncontended mutex or unlocking a mutex
|
| D | ww-mutex-design.txt | 308 ww_mutex currently encapsulates a struct mutex, this means no extra overhead for
315 would add overhead to all cases where normal mutexes are used, and
|
| /linux-4.1.27/arch/blackfin/ |
| D | Kconfig.debug | 101 Otherwise, there is no extra overhead.
126 Because zero-overhead Hardware loops are not recorded in the trace buffer,
|
| D | Kconfig | 938 bool "ins[bwl] low overhead, higher interrupt latency"
954 I/O space. This option controls which the overhead/latency of
957 (higher overhead, but lower interrupt latency)
959 (low overhead, but longer interrupt latency)
|
| /linux-4.1.27/fs/nilfs2/ |
| D | super.c | 617 unsigned long overhead; in nilfs_statfs() local
639 overhead = 0; in nilfs_statfs()
667 buf->f_blocks = blocks - overhead; in nilfs_statfs()
|
| /linux-4.1.27/arch/powerpc/platforms/8xx/ |
| D | Kconfig | 137 circumstances. This workaround adds some overhead (a TLB miss
|
| /linux-4.1.27/Documentation/leds/ |
| D | leds-class.txt | 53 overhead, I suggest these become part of the device name. The naming scheme
|
| /linux-4.1.27/Documentation/tpm/ |
| D | xen-tpmfront.txt | 21 mini-os to reduce memory and processor overhead.
|
| /linux-4.1.27/Documentation/infiniband/ |
| D | ipoib.txt | 69 the overhead incurred by handling interrupts. The main code path of
|
| /linux-4.1.27/include/net/sctp/ |
| D | structs.h | 697 size_t overhead; member
730 return packet->size == packet->overhead; in sctp_packet_empty()
|
| /linux-4.1.27/Documentation/ABI/obsolete/ |
| D | sysfs-block-zram | 90 overhead, allocated for this disk. So, allocator space
|
| /linux-4.1.27/Documentation/sound/alsa/ |
| D | serial-u16550.txt | 60 to send the data to no ports. M/B mode has extra overhead to select the MIDI
|
| D | HD-Audio.txt | 104 very slight CPU overhead, but you'd unlikely notice it.
|
| /linux-4.1.27/tools/virtio/virtio-trace/ |
| D | README | 5 overhead. Trace agent has the following functions:
|
| /linux-4.1.27/drivers/net/wireless/iwlwifi/ |
| D | Kconfig | 152 (though rather small) overhead.
|
| /linux-4.1.27/arch/powerpc/platforms/ps3/ |
| D | Kconfig | 56 overhead and also slightly increases kernel memory usage. The
|
| /linux-4.1.27/Documentation/ia64/ |
| D | fsys.txt | 110 Fsyscall handlers can execute with very little overhead, but with that
157 higher overhead. For example, if an fsyscall-handler could benefit
|
| /linux-4.1.27/drivers/tty/ |
| D | n_gsm.c | 863 int overhead = 0; in gsm_dlci_data_output_framed() local
867 overhead = 1; in gsm_dlci_data_output_framed()
876 len = dlci->skb->len + overhead; in gsm_dlci_data_output_framed()
890 size = len + overhead; in gsm_dlci_data_output_framed()
|
| /linux-4.1.27/arch/powerpc/ |
| D | Kconfig | 537 will reduce software overhead at each page boundary, allow
540 overhead. However the utilization of memory will increase.
551 reduced software overhead and larger internal fragmentation.
630 overhead in some places. If unsure say N here.
|
| D | Kconfig.debug | 42 This option will add a small amount of overhead to all hypervisor
|
| /linux-4.1.27/Documentation/trace/ |
| D | ftrace.txt | 92 writing to the ring buffer, the tracing overhead may
188 in with practically no overhead in performance. This also
233 the "save regs" attribute (thus even more overhead), a 'R'
856 overhead, and if you only care about pids, and not the
891 functions. This keeps the overhead of the tracer down
1045 enabling function tracing, we incur an added overhead. This
1046 overhead may extend the latency times. But nevertheless, this
1933 - The overhead field precedes the duration field in case of
1936 hide: echo nofuncgraph-overhead > trace_options
1937 show: echo funcgraph-overhead > trace_options
[all …]
|
| D | tracepoint-analysis.txt | 230 period is quite high to minimise overhead but the information collected can be
|
| /linux-4.1.27/Documentation/ABI/testing/ |
| D | sysfs-block-zram | 121 overhead, allocated for this disk. So, allocator space
|
| D | sysfs-kernel-slab | 296 remain on a node's partial list to avoid the overhead of
|
| /linux-4.1.27/kernel/time/ |
| D | Kconfig | 113 This is implemented at the expense of some overhead in user <-> kernel
|
| /linux-4.1.27/arch/m68k/ifpsp060/ |
| D | ilsp.doc | 41 instructions, a program can avoid the overhead associated with
|
| D | fplsp.doc | 42 instructions, a program can avoid the overhead associated
|
| /linux-4.1.27/arch/sparc/ |
| D | Kconfig | 323 when dealing with SPARC cpus at a cost of slightly increased overhead
333 increased overhead in some places. If unsure say N here.
|
| /linux-4.1.27/drivers/net/usb/ |
| D | smsc95xx.c | 1837 int overhead = csum ? SMSC95XX_TX_OVERHEAD_CSUM : SMSC95XX_TX_OVERHEAD; in smsc95xx_tx_fixup() local
1843 if (skb_headroom(skb) < overhead) { in smsc95xx_tx_fixup()
1845 overhead, 0, flags); in smsc95xx_tx_fixup()
|
| /linux-4.1.27/arch/sh/mm/ |
| D | Kconfig | 236 increased overhead in some places. If unsure say N here.
|
| /linux-4.1.27/Documentation/blockdev/ |
| D | zram.txt | 42 implemented as a special case by lock overhead issue and does not support
|
| /linux-4.1.27/fs/cramfs/ |
| D | README | 116 code simplicity and little CPU overhead even on big-endian machines.
|
| /linux-4.1.27/arch/parisc/ |
| D | Kconfig | 220 64KB For best performance, might give more overhead.
|
| /linux-4.1.27/Documentation/fb/ |
| D | udlfb.txt | 147 hardware. Includes compression and protocol overhead
|
| /linux-4.1.27/Documentation/driver-model/ |
| D | devres.txt | 228 Memory space overhead on ahci controller with two ports is between 300
|
| /linux-4.1.27/Documentation/sysctl/ |
| D | kernel.txt | 455 The unmapping of pages and trapping faults incur additional overhead that
458 feature should be disabled. Otherwise, if the system overhead from the
482 Higher scan rates incur higher system overhead as page faults must be
|
| /linux-4.1.27/fs/affs/ |
| D | Changes | 298 overhead slows down opening, but this is hardly
|
| /linux-4.1.27/arch/arm64/ |
| D | Kconfig | 508 increased overhead in some places. If unsure say N here.
515 MultiThreading at a cost of slightly increased overhead in some
|
| /linux-4.1.27/Documentation/s390/ |
| D | cds.txt | 346 next it can reduce I/O processing overhead by chaining a NoOp I/O command
354 In order to minimize I/O overhead, a device driver should use the
|
| /linux-4.1.27/arch/alpha/ |
| D | Kconfig | 505 that reduce the overhead of system emulation.
670 minimizes latency, whereas a low frequency minimizes overhead of
|
| /linux-4.1.27/Documentation/arm64/ |
| D | booting.txt | 202 to reduce the overhead of the busy-loop and a sev will be issued by
|
| /linux-4.1.27/Documentation/isdn/ |
| D | README.concap | 222 lines). For such slow lines, the overhead is probably negligible.
|
| /linux-4.1.27/Documentation/hwmon/ |
| D | lm90 | 268 to use two SMBus transaction for reads, this overhead jumps to +50%. Worse,
|
| /linux-4.1.27/kernel/power/ |
| D | Kconfig | 287 lower power usage at the cost of small performance overhead.
|
| /linux-4.1.27/Documentation/cpu-freq/ |
| D | governors.txt | 165 speed due to high load. This improves performance by reducing the overhead
|
| /linux-4.1.27/arch/x86/ |
| D | Kconfig | 635 at the expense of slightly more scheduling overhead.
701 may incur significant overhead.
870 cost of slightly increased overhead in some places. If unsure say
880 increased overhead in some places. If unsure say N here.
1284 has the cost of more pagetable lookup overhead, and also
1457 almost no overhead, as it reserves a relatively small amount
1652 will increase the kernel memory overhead of each
|
| /linux-4.1.27/drivers/mtd/ |
| D | Kconfig | 195 from an MTD device, without the overhead (and danger) of the caching
|
| /linux-4.1.27/net/ |
| D | Kconfig | 102 overhead in the transmit and receive paths.
|
| /linux-4.1.27/init/ |
| D | Kconfig | 313 Enable low-overhead system-call auditing infrastructure that
375 overhead.
546 adds unnecessary overhead.
573 Say N otherwise, this option brings an overhead that you
1021 there will be no overhead from this. Even when you set this config=y,
|
| /linux-4.1.27/scripts/ |
| D | spelling.txt | 667 overhread||overhead
|
| /linux-4.1.27/arch/arm/crypto/ |
| D | sha1-armv4-large.S | 31 @ performance is affected by prologue and epilogue overhead,
|
| D | aesbs-core.S_shipped | 38 @ results keep in mind key schedule conversion overhead (see
|
| /linux-4.1.27/fs/befs/ |
| D | ChangeLog | 19 * Added Sergey S. Kostyliov's patch to eliminate memcpy() overhead
|
| /linux-4.1.27/arch/ia64/ |
| D | Kconfig | 383 overhead in some places. If unsure say N here.
|
| /linux-4.1.27/arch/ |
| D | Kconfig | 67 This technique lowers overhead and stress on the branch prediction
|
| /linux-4.1.27/arch/x86/math-emu/ |
| D | README | 167 affected by the FPU instruction trap overhead.
|
| /linux-4.1.27/arch/arm/ |
| D | Kconfig | 1355 increased overhead in some places. If unsure say N here.
1362 MultiThreading at a cost of slightly increased overhead in some
1614 overhead to all syscalls and produces a slightly larger kernel.
|
| /linux-4.1.27/mm/ |
| D | Kconfig | 40 can have degraded performance from the extra overhead that
|
| /linux-4.1.27/tools/perf/ui/browsers/ |
| D | hists.c | 710 __HPP_COLOR_PERCENT_FN(overhead, period) in __HPP_COLOR_PERCENT_FN() argument
|
| /linux-4.1.27/drivers/mmc/host/ |
| D | Kconfig | 480 disadvantage of being relatively high overhead, but a compensating
|
| /linux-4.1.27/Documentation/virtual/kvm/ |
| D | timekeeping.txt | 270 extra overhead incurred from extra reads of memory-mapped I/O or additional
|
| D | api.txt | 3279 avoid some system call overhead if userspace has to handle the exit.
|
| /linux-4.1.27/Documentation/security/ |
| D | Smack.txt | 278 of popular Linux distributions. The administrative overhead required to
|
| /linux-4.1.27/Documentation/cgroups/ |
| D | memory.txt | 407 Performance test is also important. To see pure memory controller's overhead,
|
| D | cpusets.txt | 406 system overhead on those CPUs, including avoiding task load
|
| /linux-4.1.27/arch/mips/ |
| D | Kconfig | 2134 increased overhead in some places. If unsure say N here.
|