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Searched refs:slice_idle (Results 1 – 5 of 5) sorted by relevance

/Linux-v4.19/Documentation/block/
Dcfq-iosched.txt15 slice_idle
21 By default slice_idle is a non-zero value. That means by default we idle on
26 Setting slice_idle to 0 will remove all the idling on queues/service tree
32 So depending on storage and workload, it might be useful to set slice_idle=0.
34 keeping slice_idle enabled should be useful. For any configurations where
36 controller or for storage arrays), setting slice_idle=0 might end up in better
75 slice_idle=0 and group_idle=8, so that idling does not happen on individual
217 If one sets slice_idle=0 and if storage supports NCQ, CFQ internally switches
Dbfq-iosched.txt169 issuing sync requests (see the description of the slice_idle
281 parameters slice_idle, strict_guarantees and low_latency. For details
282 on how to maximise throughput, see slice_idle, timeout_sync and
291 considerations in the description of slice_idle are copied from CFQ
306 slice_idle
311 slice_idle is a non-zero value. Idling has a double purpose: boosting
320 Setting slice_idle to 0 will remove all the idling on queues and one
327 slice_idle=0. In general for SATA/SAS disks and software RAID of
328 SATA/SAS disks keeping slice_idle enabled should be useful. For any
331 flash-based fast storage, setting slice_idle=0 might end up in better
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/Linux-v4.19/Documentation/cgroup-v1/
Dblkio-controller.txt350 /sys/block/<disk>/queue/iosched/slice_idle
355 one can try setting slice_idle=0 and that would switch CFQ to IOPS
366 setting slice_idle=0, group_idle kicks in. That means CFQ will still idle
369 By default group_idle is same as slice_idle and does not do anything if
370 slice_idle is enabled.
/Linux-v4.19/block/
Dcfq-iosched.c3866 __cfq_update_io_thinktime(struct cfq_ttime *ttime, u64 slice_idle) in __cfq_update_io_thinktime() argument
3869 elapsed = min(elapsed, 2UL * slice_idle); in __cfq_update_io_thinktime()
4805 CFQ_ATTR(slice_idle),
Dbfq-iosched.c5630 BFQ_ATTR(slice_idle),