Pack dmu_buf_impl_t by 16 bytes #16684
Merged
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
On 64bit FreeBSD this reduces one from 296 to 280 bytes. On small block workloads dbufs may consume gigabytes of ARC, and this saves 5% of it. Signed-off-by: Alexander Motin <[email protected]> Sponsored by: iXsystems, Inc.
bwatkinson
approved these changes
Oct 24, 2024
behlendorf
approved these changes
Oct 24, 2024
Right. I guess from 384 to 368 bytes. Locking primitives on Linux were bigger last time I checked. |
behlendorf
pushed a commit
to behlendorf/zfs
that referenced
this pull request
Nov 1, 2024
On 64bit FreeBSD this reduces one from 296 to 280 bytes. On small block workloads dbufs may consume gigabytes of ARC, and this saves 5% of it. Reviewed-by: Tino Reichardt <[email protected]> Reviewed-by: Brian Atkinson <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Alexander Motin <[email protected]> Sponsored by: iXsystems, Inc. Closes openzfs#16684
ixhamza
pushed a commit
to truenas/zfs
that referenced
this pull request
Nov 11, 2024
On 64bit FreeBSD this reduces one from 296 to 280 bytes. On small block workloads dbufs may consume gigabytes of ARC, and this saves 5% of it. Reviewed-by: Tino Reichardt <[email protected]> Reviewed-by: Brian Atkinson <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Alexander Motin <[email protected]> Sponsored by: iXsystems, Inc. Closes openzfs#16684
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Outdated suggestions cannot be applied.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.
On 64bit FreeBSD this reduces one from 296 to 280 bytes. On small block workloads dbufs may consume gigabytes of ARC, and this saves 5% of it.
Types of changes
Checklist:
Signed-off-by.