Re: [LSF/MM/BPF TOPIC] Measuring limits and enhancing buffered IO

Luis Chamberlain
2024-05-14T11:52:54Z

On Mon, Feb 26, 2024 at 02:46:56PM -0800, Linus Torvalds wrote:
> I really haven't tested this AT ALL. I'm much too scared. But I don't
> actually hate how the code looks nearly as much as I *thought* I'd
> hate it.

Thanks for this, obviously those interested in this will have to test
this and fix the below issues. I've tested for regressions just against
xfs on 4k reflink profile and detected only two failures, generic/095
fails with a failure rate of about 1/2 or so:

* generic/095
* generic/741

For details refer to the test result archive [0]. To reproduce with
kdevops:

make defconfig-xfs_reflink_4k KDEVOPS_HOSTS_PREFIX=hacks B4_MESSAGE_ID=20240514084221.3664475-1-mcgrof@kernel.org
make -j $(nproc)
make bringup
make fstests
make linux
make fstests-baseline TESTS=generic/095 COUNT=10

[0] https://github.com/linux-kdevops/kdevops-results-archive/commit/27186b2782af4af559524539a2f6058d12361e10

Luis