Re: [PATCH dwarves v4 3/4] pahole: Use per-thread btf instances to avoid mutex locking.

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Wed, Jan 26, 2022 at 11:21 AM Kui-Feng Lee <kuifeng@xxxxxx> wrote:
>
> Create an instance of btf for each worker thread, and add type info to
> the local btf instance in the steal-function of pahole without mutex
> acquiring.  Once finished with all worker threads, merge all
> per-thread btf instances to the primary btf instance.
>
> Signed-off-by: Kui-Feng Lee <kuifeng@xxxxxx>
> ---

There are still unnecessary casts and missing {} in the else branch,
but I'll let Arnaldo decide or fix it up.

Once this lands, can you please send kernel patch to use -j if pahole
support it during the kernel build? See scripts/pahole-version.sh and
scripts/link-vmlinux.sh for how pahole is set up and used in the
kernel. Thanks!

Acked-by: Andrii Nakryiko <andrii@xxxxxxxxxx>

>  btf_encoder.c |   5 ++
>  btf_encoder.h |   2 +
>  pahole.c      | 125 ++++++++++++++++++++++++++++++++++++++++++++++----
>  3 files changed, 124 insertions(+), 8 deletions(-)
>

[...]



[Index of Archives]     [Linux USB Devel]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux