From e957b50b8daecfc39a1ac09855b0eacb6edfd328 Mon Sep 17 00:00:00 2001 From: Leonid Bloch Date: Wed, 26 Sep 2018 19:04:46 +0300 Subject: 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 Reviewed-by: Alberto Garcia Reviewed-by: Kevin Wolf Signed-off-by: Kevin Wolf --- docs/qcow2-cache.txt | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'docs') 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 -- cgit v1.2.3-55-g7522