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From: Jeff King <peff@peff.net>
To: Derrick Stolee <stolee@gmail.com>
Cc: "brian m. carlson" <sandals@crustytoothpaste.net>,
	"Jonathan Nieder" <jrnieder@gmail.com>,
	"Paul Smith" <paul@mad-scientist.net>,
	git@vger.kernel.org, "Duy Nguyen" <pclouds@gmail.com>,
	"Ævar Arnfjörð Bjarmason" <avarab@gmail.com>
Subject: Re: [ANNOUNCE] Git v2.19.0-rc0
Date: Sat, 25 Aug 2018 04:26:42 -0400	[thread overview]
Message-ID: <20180825082641.GC1672@sigill.intra.peff.net> (raw)
In-Reply-To: <719d5e65-553c-47a1-0b79-41c9af356f3a@gmail.com>

On Fri, Aug 24, 2018 at 12:45:10PM -0400, Derrick Stolee wrote:

> Here are the numbers for Linux:
> 
> |      | v2.18.0  | v2.19.0-rc0 | HEAD   |
> |------|----------|-------------|--------|
> |      | 86.5     | 70.739      | 57.266 |
> |      | 60.582   | 101.928     | 56.641 |
> |      | 58.964   | 60.139      | 60.258 |
> |      | 59.47    | 61.141      | 58.213 |
> |      | 62.554   | 60.73       | 84.54  |
> |      | 59.139   | 85.424      | 57.745 |
> |      | 58.487   | 59.31       | 59.979 |
> |      | 58.653   | 69.845      | 60.181 |
> |      | 58.085   | 102.777     | 61.455 |
> |      | 58.304   | 60.459      | 62.551 |
> | Max  | 86.5     | 102.777     | 84.54  |
> | Min  | 58.085   | 59.31       | 56.641 |
> | Avg* | 59.51913 | 71.30063    | 59.706 |
> | Med  | 59.0515  | 65.493      | 60.08  |

Thanks. The median ones are the most interesting, I think (and show a
very satisfying recovery from my patch).

I'm surprised at the variance, especially in your v2.19 runs. It makes
me distrust the mean (and implies to me we could do better by throwing
away outliers based on value, not just the single high/low; or just
using the median also solves that).

The variance in the v2.18 column is what I'd expect based on past
experience (slow cold cache to start, then a few percent change
run-to-run).

-Peff

  reply	other threads:[~2018-08-25  8:26 UTC|newest]

Thread overview: 58+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-08-20 22:13 [ANNOUNCE] Git v2.19.0-rc0 Junio C Hamano
2018-08-20 22:41 ` Stefan Beller
2018-08-20 23:39   ` Jonathan Nieder
2018-08-21  0:27     ` Jonathan Nieder
2018-08-21  0:46       ` Stefan Beller
2018-08-21 20:41 ` Derrick Stolee
2018-08-21 21:29   ` Jeff King
2018-08-22  0:48     ` brian m. carlson
2018-08-22  3:03       ` Jeff King
2018-08-22  3:36         ` Jeff King
2018-08-22 11:11           ` Derrick Stolee
2018-08-22  5:36         ` brian m. carlson
2018-08-22  6:07           ` Jeff King
2018-08-22  7:39             ` Ævar Arnfjörð Bjarmason
2018-08-22 11:14               ` Derrick Stolee
2018-08-22 15:17                 ` Jeff King
2018-08-22 16:08                   ` Duy Nguyen
2018-08-22 16:14                     ` Duy Nguyen
2018-08-22 16:26                       ` Jeff King
2018-08-22 16:49                         ` Derrick Stolee
2018-08-22 16:58                           ` Duy Nguyen
2018-08-22 17:04                             ` Derrick Stolee
2018-08-22 16:59                           ` Jeff King
2018-08-22 17:02                             ` Junio C Hamano
2018-08-22 15:14               ` Jeff King
2018-08-22 14:28           ` Derrick Stolee
2018-08-22 15:24             ` Jeff King
2018-08-22 12:42         ` Paul Smith
2018-08-22 15:23           ` Jeff King
2018-08-23  1:23             ` Jonathan Nieder
2018-08-23  2:16               ` Jeff King
2018-08-23  2:27                 ` Jonathan Nieder
2018-08-23  5:02                   ` Jeff King
2018-08-23  5:09                     ` brian m. carlson
2018-08-23  5:10                     ` Jonathan Nieder
2018-08-23 13:20                     ` Junio C Hamano
2018-08-23 16:31                       ` wide t/perf output, was " Jeff King
2018-08-23  3:47                 ` brian m. carlson
2018-08-23  5:04                   ` Jeff King
2018-08-23 10:26                     ` Derrick Stolee
2018-08-23 13:16                       ` Junio C Hamano
2018-08-23 16:14                       ` Jeff King
2018-08-23 23:30                         ` Jacob Keller
2018-08-23 23:40                           ` Jeff King
2018-08-24  0:06                             ` Jeff King
2018-08-24  0:16                               ` Jeff King
2018-08-24  2:48                                 ` Jacob Keller
2018-08-24  2:59                                   ` Jeff King
2018-08-24  6:45                                     ` Jeff King
2018-08-24 11:04                                       ` Derrick Stolee
2018-08-27 19:36                                     ` Junio C Hamano
2018-08-23 18:53                       ` Jeff King
2018-08-23 20:59                         ` Derrick Stolee
2018-08-24  6:56                           ` Jeff King
2018-08-24  7:57                             ` Ævar Arnfjörð Bjarmason
2018-08-24 16:45                           ` Derrick Stolee
2018-08-25  8:26                             ` Jeff King [this message]
2018-09-02 18:53                       ` Kaartic Sivaraam

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