# strange git delays 4 messages from 2008-03-20 to 2008-03-20. Participants: James Utter, Johannes Sixt, Johannes Schindelin, Linus Torvalds. Thread: https://gitlist.dev/t/12775 ## James Utter, 2008-03-20 13:32 Subject: strange git delays Message-ID: <1206019968.27619.26.camel@localhost> URL: https://gitlist.dev/e/1206019968.27619.26.camel%40localhost ``` Hi, Many git operations are running really slowly for me. For example 'git commit' and 'git branch' are taking 10 seconds to complete, even on an almost empty repository, and no longer on a 60MB repository with plenty of history. There does not appear to be any CPU or disk activity caused by git. I would appreciate your help in resolving this problem. Regards, James Utter Details of my environment: ------------------------------- Linux 2.6.24-1-amd64 #1 SMP x86_64 (from debian testing) [1] git-core 1:1.5.4.3-1 (from debian testing) [2] Core 2 duo, 2Ghz [1] I have been experiencing this problem across several kernels [2] possibly over several git versions too (not sure) Here is a test run on my computer --------------------------------- james@timesink:~$ mkdir testgit james@timesink:~$ cd testgit/ james@timesink:~/testgit$ time git init-db Initialized empty Git repository in .git/ real 0m0.013s user 0m0.000s sys 0m0.008s james@timesink:~/testgit$ echo "hai there" > hello james@timesink:~/testgit$ time git add . real 0m0.103s user 0m0.000s sys 0m0.004s james@timesink:~/testgit$ time git commit --message "initial commit" Created initial commit 4f4b3a3: initial commit 1 files changed, 1 insertions(+), 0 deletions(-) create mode 100644 hello real 0m10.008s user 0m0.000s sys 0m0.008s james@timesink:~/testgit$ time git branch new real 0m10.006s user 0m0.000s sys 0m0.004s james@timesink:~/testgit$ time git branch -d new Deleted branch new. real 0m0.005s user 0m0.000s sys 0m0.004s james@timesink:~/testgit$ echo "im in ur git\n slowin ur workflo" >> hello james@timesink:~/testgit$ time git commit -a --message "how long" Created commit 2392de6: how long 1 files changed, 1 insertions(+), 0 deletions(-) real 0m10.059s user 0m0.000s sys 0m0.008s ``` ## Johannes Sixt, 2008-03-20 14:05 Subject: Re: strange git delays Message-ID: <47E26F26.10301@viscovery.net> URL: https://gitlist.dev/e/47E26F26.10301%40viscovery.net In-Reply-To: <1206019968.27619.26.camel@localhost> ``` James Utter schrieb: > Many git operations are running really slowly for me. > For example 'git commit' and 'git branch' are taking 10 seconds to > complete, even on an almost empty repository, and no longer on a 60MB > repository with plenty of history. > > There does not appear to be any CPU or disk activity caused by git. ... > james@timesink:~/testgit$ time git commit --message "initial commit" > Created initial commit 4f4b3a3: initial commit > 1 files changed, 1 insertions(+), 0 deletions(-) > create mode 100644 hello > > real 0m10.008s > user 0m0.000s > sys 0m0.008s What does strace -c git commit --message "initial commit" report? 'strace -tt' or 'strace -T'? -- Hannes ``` ## Johannes Schindelin, 2008-03-20 14:19 Subject: Re: strange git delays Message-ID: URL: https://gitlist.dev/e/alpine.LSU.1.00.0803201518520.4124%40racer.site In-Reply-To: <1206019968.27619.26.camel@localhost> ``` Hi, On Fri, 21 Mar 2008, James Utter wrote: > james@timesink:~/testgit$ time git commit --message "initial commit" > Created initial commit 4f4b3a3: initial commit > 1 files changed, 1 insertions(+), 0 deletions(-) > create mode 100644 hello > > real 0m10.008s > user 0m0.000s > sys 0m0.008s I'd try to oprofile it to know what is taking so long. Hth, Dscho ``` ## Linus Torvalds, 2008-03-20 21:53 Subject: Re: strange git delays Message-ID: URL: https://gitlist.dev/e/alpine.LFD.1.00.0803201441270.3020%40woody.linux-foundation.org In-Reply-To: <1206019968.27619.26.camel@localhost> ``` On Fri, 21 Mar 2008, James Utter wrote: > > james@timesink:~/testgit$ time git commit --message "initial commit" > Created initial commit 4f4b3a3: initial commit > 1 files changed, 1 insertions(+), 0 deletions(-) > create mode 100644 hello > > real 0m10.008s > user 0m0.000s > sys 0m0.008s Ok, that is almost exactly 10 seconds longer than it should take. And I can almost guarantee that it's something like a problem looking up your hostname or perhaps user identity - I would guess you have some name service problem. Do an strace -tT git commit --message "initial commit" on that git commit to make sure, but I would almost bet that it's when git does tget "getpwuid()" thing to get your name from the gecos fields, and you have some setup problem with nscd o similar. It might just go away if you set up your user name and email manually, ie try doing git config --global user.name "James Utter" git config --global user.email james.utter@gmail.com and see if that makes the delay go away. It probably tries to look up your login info from some non-existent NIS setup, and then times out after ten seconds and picks the data from your /etc/passwd file instead. (There can be other things that do similar things - misconfigured name servers etc can cause delay etc. So maybe I'm wrogn on blaming nscd, but it would be my first guess). Linus ```