SSV-24185: Fix the number of zvol I/O threads to align with 50% of the maximum available logical CPUs. #98
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
If zvol_io_threads set to '0', then the default zvol io threads will be 50% of number of logical processors.
arun-kv
force-pushed
the
SSV-24185-debug
branch
from
20af5e7 to
ae82c38
Compare
arun-kv
changed the title
datacore-rbassett
approved these changes
Oct 31, 2024
These tests are not executed for our commits. We have our own test running in a Jenkin portal Here is the link http://10.200.2.48:8080/job/OpenZFS-Test-Suite/118/ |
hrudaya21
approved these changes
Nov 4, 2024
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
SSV-24185
Issue: CPU stuck at 100% is related to ZFS when we use dedup & comp, never able to reproduce the issue with Compression only enable.
Fix: The number of zvol I/O threads to align with 50% of the maximum available logical CPUs if the 'zvol_io_threads' value in 'Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\ZFSin' is not specified. If the 'zvol_io_threads' value is provided, use this value for creating the zvol task queue thread pool.
Use kstat.exe zfs:0:tunable to check the current value of zvol_io_threads. This can be set only by updating the registry, and also require a reboot.