Lines Matching refs:io

1 Block io priorities
8 With the introduction of cfq v3 (aka cfq-ts or time sliced cfq), basic io
9 priorities are supported for reads on files.  This enables users to io nice
12 with cfq; other io schedulers do not support io priorities thus far.
17 CFQ implements three generic scheduling classes that determine how io is
20 IOPRIO_CLASS_RT: This is the realtime io class. This scheduling class is given
23 care, one io RT process can starve the entire system. Within the RT class,
30 for any process that hasn't set a specific io priority. The class data
31 determines how much io bandwidth the process will get, it's directly mappable
33 BE prio level, 7 is the lowest. The mapping between cpu nice level and io
37 level only get io time when no one else needs the disk. The idle class has no