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From: "Ulrich Windl" <Ulrich.Windl@rz.uni-regensburg.de>
To: <git@vger.kernel.org>
Subject: Terrible bad performance for it blame --date=iso -C -C master -- <file>
Date: Fri, 31 Mar 2017 09:30:32 +0200	[thread overview]
Message-ID: <58DE0598020000A1000256CE@gwsmtp1.uni-regensburg.de> (raw)
In-Reply-To: 58DE0598020000A1000256CE@gwsmtp1.uni-regensburg.de


Hi!

I was running "vc-annotate" in Emacs for a file from a large repository (>40000 files, a big percentage being binary, about 10 commits). For the first file the result was presented rather soon, but for a second file the command did not finish even after about 10 minutes!

The file in question is a rather short text file (124 kB), and according to git log it has one commit.

While being bored, I did an strace of the command to find out that a huge number of files is inspected.

I'm using git of openSUSE LEap 42.2 (git-2.10.2-3.1.x86_64).

Here's the stat of the process:

% cat /proc/6307/stat
6307 (git) R 6189 6307 6307 0 -1 4194304 30514692 0 1860 0 142035 6333 0 0 20 0 1 0 14519800 5850595328 391884 18446744073709551615 4194304 6038988 140726752300720 140726752293728 5549816 0 0 67108864 0 0 0 0 17 2 0 0 28211 0 0 8138160 8173100 9625600 140726752306005 140726752306072 140726752306072 140726752309227 0

Regards,
Ulrich


       reply	other threads:[~2017-03-31  7:40 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-03-31  7:30 Ulrich Windl [this message]
2017-03-31 15:52 ` Terrible bad performance for it blame --date=iso -C -C master -- <file> Junio C Hamano
2017-03-31 16:23   ` Samuel Lijin
2017-04-03  6:56   ` Antw: " Ulrich Windl
2017-04-03 10:56     ` Terrible bad performance for it blame --date=iso -C SZEDER Gábor
2017-04-03 15:16       ` Jakub Narębski
2017-04-04  6:23         ` Antw: " Ulrich Windl
2017-05-01 17:58   ` Terrible bad performance for it blame --date=iso -C -C master -- <file> Samuel Lijin
2017-05-02  0:59     ` Junio C Hamano
2017-05-03  7:12       ` Samuel Lijin
2017-05-03 12:29         ` Antw: " Ulrich Windl

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