diff options
| author | Leonid Bloch <lbloch@janustech.com> | 2018-09-26 19:04:46 +0300 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2018-10-01 12:51:12 +0200 |
| commit | e957b50b8daecfc39a1ac09855b0eacb6edfd328 (patch) | |
| tree | 9afb2feb763c3fffa2d431d8aa3464b436c91b53 /docs/qcow2-cache.txt | |
| parent | 45b4949c7bcdcd998cb42f5c517e80a2657cfd33 (diff) | |
qcow2: Set the default cache-clean-interval to 10 minutes
The default cache-clean-interval is set to 10 minutes, in order to lower
the overhead of the qcow2 caches (before the default was 0, i.e.
disabled).
* For non-Linux platforms the default is kept at 0, because
cache-clean-interval is not supported there yet.
Signed-off-by: Leonid Bloch <lbloch@janustech.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'docs/qcow2-cache.txt')
| -rw-r--r-- | docs/qcow2-cache.txt | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/docs/qcow2-cache.txt b/docs/qcow2-cache.txt index 1fcc0658b2..59358b816f 100644 --- a/docs/qcow2-cache.txt +++ b/docs/qcow2-cache.txt @@ -210,8 +210,8 @@ This example removes all unused cache entries every 15 minutes: -drive file=hd.qcow2,cache-clean-interval=900 -If unset, the default value for this parameter is 0 and it disables -this feature. +If unset, the default value for this parameter is 600. Setting it to 0 +disables this feature. Note that this functionality currently relies on the MADV_DONTNEED argument for madvise() to actually free the memory. This is a |