Re: [PATCH v4 1/5] lib/bitmap: add bitmap_{set,get}_value()
From: Alexander Potapenko
Date: Fri Sep 22 2023 - 03:48:37 EST
>
> Regarding the rest of the series:
> - I still see Evgenii's name in mtecomp.c, and EA0 references;
Double-checked there are none in v5 (only the Suggested-by: tag)
> - git-am throws warning about trailing line;
I checked locally that `git am` does not warn about v5 patches. But
given that the patches are generated with `git format-patch` I suspect
they get garbled when you download them, could it be the case?
> - checkpatch warns 7 times;
It now warns 4 times, three warnings are about updating MAINTAINERS (I
don't think there's need for this), the last one is about
CONFIG_ARM64_MTE_COMP_KUNIT_TEST not having three lines of description
text in Kconfig.
> Can you fix all the above before sending the new version?
> Have you tested generic part against BE32, BE64 and LE32 architectures;
> and arch part against BE64? If not, please do.
I did now.
> You're mentioning that the compression ratio is 2 to 20x. Can you
> share the absolute numbers? If it's 1k vs 2k, I think most people
> just don't care...
In the other thread I mentioned that although 20x compression is
reachable, it may not lead to practical savings. I reworded the
description, having added the absolute numbers.
> Can you share the code that you used to measure the compression ratio?
> Would it make sense to export the numbers via sysfs?
Done in v5
> Thanks,
> Yury
--
Alexander Potapenko
Software Engineer
Google Germany GmbH
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