Yep, this will be sync'd from the dkms source into the kernel once this
is released.
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https://bugs.launchpad.net/bugs/1881107
Title:
zfs: backport AES-GCM performance
I can confirm it. At the moment the kernel module is not patched and you
need to install the package zfs-dkms.
without patch:
WRITE SPEED 25,3 MB/s
READ SPEED 52,6 MB/s
with patch (apt install zfs-dkms && reboot):
WRITE SPEED 173 MB/s
READ SPEED 230 MB/s
Ubuntu 20.04 LTS
I can confirm the fix will enhance speed ~ 3 times on my machine, but fixed ZFS
kernel module is not included even in current focal-updates kernel
(linux-modules-5.4.0-39-generic).
I had to install zfs-dkms to get zfs kernel module of version 0.8.3-1ubuntu12.1.
I was trying to find what version
This bug was fixed in the package zfs-linux - 0.8.3-1ubuntu12.1
---
zfs-linux (0.8.3-1ubuntu12.1) focal; urgency=medium
* Backport AES-GCM performance accelleration (LP: #1881107)
- backport of upstream zfs commit 31b160f0a6c673c8f926233af2ed6d5354808393
("ICP: Improve
I've tested this on a Haswell, Intel Core2 Duo and Conroe CPUs under
emulation. The latter two CPUS don't have AES instruction sets and work
fine. Attached are some benchmarks.
Also regression tested on Intel Core2 Duo and Haswell with the ubuntu
zfs autotests, so I believe I've covered AES and
Do we have the tests run on hardware that does not support the relevant
instructions, in addition to running them on CPUs with the AES
instructions?
** Changed in: zfs-linux (Ubuntu Focal)
Status: In Progress => Fix Committed
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I'll be doing the latter fix once I've got this through SRU process. I'm
trying to make a low-risk set of updates.
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Title:
zfs:
There is another AES-GCM performance acceleration commit for systems
without MOVBE.
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Richard
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Title:
zfs: backport AES-GCM
benchmarked on Haswell Intel 8 thread CPU:
Benchmarks: original
15:29:15 INFO | zfs_encryption_aes_128_ccm_wr_rate_mbytes_per_second_average
79.6500
15:29:15 INFO | zfs_encryption_aes_128_ccm_rd_rate_mbytes_per_second_average
68.9800
15:29:15 INFO |
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