From: Eric Sunshine <sunshine@sunshineco.com>
To: Jeff King <peff@peff.net>
Cc: "brian m. carlson" <sandals@crustytoothpaste.net>, git@vger.kernel.org
Subject: Re: [PATCH 3/3] index-pack: adjust default threading cap
Date: Mon, 24 Aug 2020 13:55:47 -0400 [thread overview]
Message-ID: <20200824175547.GA9245@flurp.local> (raw)
In-Reply-To: <20200824173735.GA673908@coredump.intra.peff.net>
On Mon, Aug 24, 2020 at 01:37:35PM -0400, Jeff King wrote:
> So I'd be very happy if people on other platforms (especially non-intel
> ones) wanted to run:
>
> cd t/perf
> GIT_PERF_EXTRA=1 \
> GIT_PERF_LARGE_REPO=/path/to/clone/of/linux.git \
> ./p5302-pack-index.sh
>
> and report the results.
>
> I do have a slightly-old AMD machine with 4 cores (an A8-7600). Here's
> what it says:
>
> 5302.3: index-pack 0 threads 447.67(436.62+6.57)
> 5302.4: index-pack 1 threads 450.80(441.26+7.20)
> 5302.5: index-pack 2 threads 265.62(459.56+7.30)
> 5302.6: index-pack 4 threads 177.06(477.56+8.22)
> 5302.7: index-pack default number of threads 202.60(473.15+7.61)
I tested on my 9.5 year old 4-core iMac with 2.5 GHz Intel Core i5,
spinning platter hard disk, and 12 GB memory (recently upgraded from 4
GB). I used git.git rather than linux.git because I didn't want to
wait several days for the results (plus this is my primary machine
which I'm actively using). Results were similar to what you saw:
5302.3: index-pack 0 threads 14.85(14.10+0.66)
5302.4: index-pack 1 threads 14.65(13.83+0.63)
5302.5: index-pack 2 threads 9.11(14.40+0.80)
5302.6: index-pack 4 threads 6.89(17.03+1.32)
5302.7: index-pack default number of threads 7.72(16.15+1.15)
Thanks for providing exact instructions for running the test; I had
never done it before, thus didn't know how.
next prev parent reply other threads:[~2020-08-24 17:56 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-21 17:51 [PATCH 0/3] index-pack threading defaults Jeff King
2020-08-21 17:53 ` [PATCH 1/3] p5302: disable thread-count parameter tests by default Jeff King
2020-08-21 17:54 ` [PATCH 2/3] p5302: count up to online-cpus for thread tests Jeff King
2020-08-21 17:58 ` Jeff King
2020-08-21 17:58 ` [PATCH 3/3] index-pack: adjust default threading cap Jeff King
2020-08-21 18:08 ` Eric Sunshine
2020-08-21 18:41 ` Jeff King
2020-08-22 1:16 ` brian m. carlson
2020-08-24 17:37 ` Jeff King
2020-08-24 17:55 ` Eric Sunshine [this message]
2020-08-21 18:44 ` [PATCH 0/3] index-pack threading defaults Jeff King
2020-08-21 18:59 ` Junio C Hamano
2020-08-21 19:14 ` Jeff King
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