kernel_optimize_test/Documentation/block
Shaohua Li 297e3d8547 blk-throttle: make throtl_slice tunable
throtl_slice is important for blk-throttling. It's called slice
internally but it really is a time window blk-throttling samples data.
blk-throttling will make decision based on the samplings. An example is
bandwidth measurement. A cgroup's bandwidth is measured in the time
interval of throtl_slice.

A small throtl_slice meanse cgroups have smoother throughput but burn
more CPUs. It has 100ms default value, which is not appropriate for all
disks. A fast SSD can dispatch a lot of IOs in 100ms. This patch makes
it tunable.

Since throtl_slice isn't a time slice, the sysfs name
'throttle_sample_time' reflects its character better.

Signed-off-by: Shaohua Li <shli@fb.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
2017-03-28 08:02:20 -06:00
..
00-INDEX Documentation: update missing index files in block/00-INDEX 2016-03-31 00:44:26 -06:00
biodoc.txt block: better op and flags encoding 2016-10-28 08:48:16 -06:00
biovecs.txt Documentation: update notes in biovecs about arbitrarily sized bios 2015-08-13 12:32:07 -06:00
capability.txt
cfq-iosched.txt block: replace REQ_NOIDLE with REQ_IDLE 2016-11-01 09:43:26 -06:00
cmdline-partition.txt
data-integrity.txt
deadline-iosched.txt
ioprio.txt
null_blk.txt null_blk: add usage hints for NVM 2016-11-16 08:26:11 -07:00
pr.txt Doc: Fix double words in Documentation 2017-01-26 15:25:41 -07:00
queue-sysfs.txt blk-throttle: make throtl_slice tunable 2017-03-28 08:02:20 -06:00
request.txt
stat.txt
switching-sched.txt
writeback_cache_control.txt block, drivers, fs: rename REQ_FLUSH to REQ_PREFLUSH 2016-06-07 13:41:38 -06:00