297e3d8547
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> |
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| .. | ||
| 00-INDEX | ||
| biodoc.txt | ||
| biovecs.txt | ||
| capability.txt | ||
| cfq-iosched.txt | ||
| cmdline-partition.txt | ||
| data-integrity.txt | ||
| deadline-iosched.txt | ||
| ioprio.txt | ||
| null_blk.txt | ||
| pr.txt | ||
| queue-sysfs.txt | ||
| request.txt | ||
| stat.txt | ||
| switching-sched.txt | ||
| writeback_cache_control.txt | ||