Re: git: 730ea72c706e - main - cam(4): Limit search for disks in SES enclosure by single bus

From: Alan Somers <asomers_at_freebsd.org>
Date: Tue, 05 Oct 2021 19:14:16 UTC 
On Tue, Oct 5, 2021 at 1:04 PM Alexander Motin <mav@freebsd.org> wrote:
>
> The branch main has been updated by mav:
>
> URL: https://cgit.FreeBSD.org/src/commit/?id=730ea72c706ef8e025616772cfd86fd89ed3d42e
>
> commit 730ea72c706ef8e025616772cfd86fd89ed3d42e
> Author:     Alexander Motin <mav@FreeBSD.org>
> AuthorDate: 2021-10-05 19:01:16 +0000
> Commit:     Alexander Motin <mav@FreeBSD.org>
> CommitDate: 2021-10-05 19:01:16 +0000
>
>     cam(4): Limit search for disks in SES enclosure by single bus
>
>     At least for SAS that we only support now disks are typically
>     connected to the same bus as the enclosure.  Limiting the search
>     scope makes it much faster on systems with multiple buses and
>     thousands of disks.
>
>     Reviewed by:    imp
>     MFC after:      2 weeks
>     Sponsored by:   iXsystems, Inc.
>     Differential Revision:  https://reviews.freebsd.org/D32305
> ---
>  sys/cam/scsi/scsi_enc_ses.c | 8 ++++++++
>  1 file changed, 8 insertions(+)
>
> diff --git a/sys/cam/scsi/scsi_enc_ses.c b/sys/cam/scsi/scsi_enc_ses.c


Sounds juicy.  Do you have any benchmarks?