Hi,
two patches fixing the problem with aync discard. The default settings
had a low IOPS limit and processing a large batch to discard would take
a long time. On laptops this can cause increased power consumption due
to disk activity. As async discard has been on by default since 6.2 this
likely affects a lot of users.
Please pull, thanks.
- increase the default IOPS limit 10x which reportedly helped
- setting the sysfs IOPS value to 0 now does not throttle anymore
allowing the discards to be processed at full speed, previously there
was an arbitrary 6 hour target for processing the pending batch
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The following changes since commit 68d99ab0e9221ef54506f827576c5a914680eeaf:
btrfs: fix fast csum implementation detection (2023-04-06 16:34:13 +0200)
are available in the Git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux.git for-6.3-rc7-tag
for you to fetch changes up to ef9cddfe57d86aac6b509b550136395669159b30:
btrfs: reinterpret async discard iops_limit=0 as no delay (2023-04-21 00:28:23 +0200)
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Boris Burkov (2):
btrfs: set default discard iops_limit to 1000
btrfs: reinterpret async discard iops_limit=0 as no delay
fs/btrfs/discard.c | 21 +++++++++++++--------
1 file changed, 13 insertions(+), 8 deletions(-)
The pull request you sent on Fri, 21 Apr 2023 17:21:31 +0200:
> git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux.git for-6.3-rc7-tag
has been merged into torvalds/linux.git:
https://git.kernel.org/torvalds/c/c337b23f32c87320dffd389e4f0f793db35f0a9b
Thank you!
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