diff options
| author | Oleg Drokin <green@linuxhacker.ru> | 2015-07-06 12:48:47 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-07-13 19:47:20 -0700 |
| commit | df476a4d5de09d9324b108fc9c5ff2c00a0850d0 (patch) | |
| tree | 5ee03606f8a8aae613cece6f55dd6acc82f004f6 /drivers/staging/lustre/sysfs-fs-lustre | |
| parent | e2424a1265f2772b66f068c205256e2aef5f74a0 (diff) | |
staging/lustre/obdclass: move max_dirty_mb from sysctl to sysfs
max_dirty_mb is now a parameter in /sys/fs/lustre/
Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/lustre/sysfs-fs-lustre')
| -rw-r--r-- | drivers/staging/lustre/sysfs-fs-lustre | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/staging/lustre/sysfs-fs-lustre b/drivers/staging/lustre/sysfs-fs-lustre index 6dbad260fa7d..38d1adcd2335 100644 --- a/drivers/staging/lustre/sysfs-fs-lustre +++ b/drivers/staging/lustre/sysfs-fs-lustre @@ -52,6 +52,18 @@ Description: AT (adaptive timeouts). Unit: seconds, default: 100 +What: /sys/fs/lustre/max_dirty_mb +Date: June 2015 +Contact: "Oleg Drokin" <oleg.drokin@intel.com> +Description: + Controls total number of dirty cache (in megabytes) allowed + across all mounted lustre filesystems. + Since writeout of dirty pages in Lustre is somewhat expensive, + when you allow to many dirty pages, this might lead to + performance degradations as kernel tries to desperately + find some pages to free/writeout. + Default 1/2 RAM. Min value 4, max value 9/10 of RAM. + What: /sys/fs/lustre/llite/<fsname>-<uuid>/blocksize Date: May 2015 Contact: "Oleg Drokin" <oleg.drokin@intel.com> |