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Re: curl-users Windoze patch performance report

From: Timothe Litt <litt_at_acm.org>
Date: Fri, 3 Aug 2018 07:21:05 -0400

Date: Thu, 2 Aug 2018 14:52:51 +0200 (CEST)
> From: Daniel Stenberg <daniel_at_haxx.se>
> To: libcurl hacking <curl-library_at_cool.haxx.se>
> Cc: curl users <curl-users_at_cool.haxx.se>
> Subject: Windows users! Help us test upload performance tuning?
> Message-ID: <alpine.DEB.2.20.1808021448040.27766_at_tvnag.unkk.fr>
> Content-Type: text/plain; charset="utf-8"; Format="flowed"
>
> Hello!
>
> Please note that we would *love* your assistance here if you're a Windows user
> and can offer a few moments of your time to run a few tests on a few Windows
> versions and tell us the outcome! Here's a simple way to help us make curl
> better without doing any coding at all! =)
>
> We want to have more user's experience and results from tests to determine how
> we should make curl make uploads on windows as fast as possible.
>
> See Daniel's mail below for details. Please report your results to the list,
> to me or to Daniel Jeliński and we can make a summary in a few days.
>
Here are 3 consecutive runs. U.S. (New England). 75Mb/sec FTTP

Although the relative times are interesting, I don't trust the
openspeedtest.com result.

I ran its standard browser-based test several times.  It reported
download speeds of ~50 Mb/sec,
and upload speeds of 4 Mb/sec (twice), 2.8Mb/sec (once) & 49Mb/sec
(once).  Other
sites, including speedtest.net report 75 Mb/sec (up and down)
consistently.  I picked servers
in the same geography as the one openspeedtest used.

The FAQ, About us, & Contact us links on their web page all result in 404s.

One possibility is that my IPv6 connection is via a (HE) tunnel - your
test doesn't indicate the
peer IP address that it uses.  If it's using IPv6, I would expect lower
speeds - but not that low.
openspeedtest.com does report both A and AAAA records.

In any case, how you interpret the data is up to you.

Note: I excluded a previous run because automatic anti-virus scan
increased times.
It's always a good idea to run benchmarks several times and discard
outliers.

>testcurl.bat

Microsoft Windows [Version 10.0.17134.191]
generating test file...
running vanilla...
start:0.547000 total:3.578000
running patched...
start:0.547000 total:1.531000
Press any key to continue . . .

>testcurl.bat

Microsoft Windows [Version 10.0.17134.191]
generating test file...
running vanilla...
start:0.547000 total:3.735000
running patched...
start:0.593000 total:1.625000
Press any key to continue . . .

>testcurl.bat

Microsoft Windows [Version 10.0.17134.191]
generating test file...
running vanilla...
start:0.578000 total:3.813000
running patched...
start:0.563000 total:1.563000
Press any key to continue . . .
>

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Received on 2018-08-03