Searched hist:b6866318657717c8914673a6394894d12bc9ff5e (Results 1 – 6 of 6) sorted by relevance
| /openbmc/linux/Documentation/block/ |
| H A D | stat.rst | diff b6866318657717c8914673a6394894d12bc9ff5e Thu Nov 21 04:40:26 CST 2019 Konstantin Khlebnikov <khlebnikov@yandex-team.ru> block: add iostat counters for flush requests
Requests that triggers flushing volatile writeback cache to disk (barriers)
have significant effect to overall performance.
Block layer has sophisticated engine for combining several flush requests
into one. But there is no statistics for actual flushes executed by disk.
Requests which trigger flushes usually are barriers - zero-size writes.
This patch adds two iostat counters into /sys/class/block/$dev/stat and
/proc/diskstats - count of completed flush requests and their total time.
Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
|
| /openbmc/linux/Documentation/admin-guide/ |
| H A D | iostats.rst | diff b6866318657717c8914673a6394894d12bc9ff5e Thu Nov 21 04:40:26 CST 2019 Konstantin Khlebnikov <khlebnikov@yandex-team.ru> block: add iostat counters for flush requests
Requests that triggers flushing volatile writeback cache to disk (barriers)
have significant effect to overall performance.
Block layer has sophisticated engine for combining several flush requests
into one. But there is no statistics for actual flushes executed by disk.
Requests which trigger flushes usually are barriers - zero-size writes.
This patch adds two iostat counters into /sys/class/block/$dev/stat and
/proc/diskstats - count of completed flush requests and their total time.
Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
|
| /openbmc/linux/Documentation/ABI/testing/ |
| H A D | procfs-diskstats | diff b6866318657717c8914673a6394894d12bc9ff5e Thu Nov 21 04:40:26 CST 2019 Konstantin Khlebnikov <khlebnikov@yandex-team.ru> block: add iostat counters for flush requests
Requests that triggers flushing volatile writeback cache to disk (barriers)
have significant effect to overall performance.
Block layer has sophisticated engine for combining several flush requests
into one. But there is no statistics for actual flushes executed by disk.
Requests which trigger flushes usually are barriers - zero-size writes.
This patch adds two iostat counters into /sys/class/block/$dev/stat and
/proc/diskstats - count of completed flush requests and their total time.
Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
|
| /openbmc/linux/block/ |
| H A D | blk-flush.c | diff b6866318657717c8914673a6394894d12bc9ff5e Thu Nov 21 04:40:26 CST 2019 Konstantin Khlebnikov <khlebnikov@yandex-team.ru> block: add iostat counters for flush requests
Requests that triggers flushing volatile writeback cache to disk (barriers)
have significant effect to overall performance.
Block layer has sophisticated engine for combining several flush requests
into one. But there is no statistics for actual flushes executed by disk.
Requests which trigger flushes usually are barriers - zero-size writes.
This patch adds two iostat counters into /sys/class/block/$dev/stat and
/proc/diskstats - count of completed flush requests and their total time.
Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
|
| H A D | genhd.c | diff b6866318657717c8914673a6394894d12bc9ff5e Thu Nov 21 04:40:26 CST 2019 Konstantin Khlebnikov <khlebnikov@yandex-team.ru> block: add iostat counters for flush requests
Requests that triggers flushing volatile writeback cache to disk (barriers)
have significant effect to overall performance.
Block layer has sophisticated engine for combining several flush requests
into one. But there is no statistics for actual flushes executed by disk.
Requests which trigger flushes usually are barriers - zero-size writes.
This patch adds two iostat counters into /sys/class/block/$dev/stat and
/proc/diskstats - count of completed flush requests and their total time.
Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
|
| /openbmc/linux/include/linux/ |
| H A D | blk_types.h | diff b6866318657717c8914673a6394894d12bc9ff5e Thu Nov 21 04:40:26 CST 2019 Konstantin Khlebnikov <khlebnikov@yandex-team.ru> block: add iostat counters for flush requests
Requests that triggers flushing volatile writeback cache to disk (barriers)
have significant effect to overall performance.
Block layer has sophisticated engine for combining several flush requests
into one. But there is no statistics for actual flushes executed by disk.
Requests which trigger flushes usually are barriers - zero-size writes.
This patch adds two iostat counters into /sys/class/block/$dev/stat and
/proc/diskstats - count of completed flush requests and their total time.
Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
|