Re: Poor git write performance to NFS
- From
- Daniel Steinborn <daniel.steinborn@lrz.de>
- Date
- Oct 22, 2015, 13:04 UTC
- Message-ID
- <5628DED0.3050002@lrz.de>
- In-Reply-To
- <xmqqlhaw5bj2.fsf@gitster.mtv.corp.google.com>
Hi,
thank you for your answer. I removed the git Debian package and compiled v2.6.2 manually. The performance is much better now (on the same level als v1.7.12.4). We opened a Debian bug report, to request a git version >= 2.6 to be backported to jessie: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=802661
The issue is now solved for us, thanks again for your quick response.
Best regards, Daniel Steinborn
Am 21.10.2015 um 20:20 schrieb Junio C Hamano:
Show 23 quoted lines
> Daniel Steinborn <daniel.steinborn@lrz.de> writes: > >> currently we are experiencing poor write performance when a repository >> is pushed to a nfs volume. Interestingly, this seems to be a problem >> in newer git versions: >> >> v1.7.12.4: Very good performance >> >> v2.1.4: Bad performance, up to 6 times slower >> >> Are there any changed default settings or new features that can be the >> reason for that problem? >> >> Please ask for specific details if they are neccessary. > Between 1.7.12.x series and v2.1.4, there are more than two years' > worth of changes, so it is unreasonable for anybody to expect that > such a question can be answered in a meaningful way. > > Have you tried more recent versions yet? 2.1.x series is over a > year old, and I am reasonably sure there have been tons of "earlier > we did X for correctness, which unfortunately made things slower, > and this ensures the same correctness in a different way that is > much more performant" fixes since then.
-- Daniel Steinborn Leibniz-Rechenzentrum Boltzmannstraße 1 85748 Garching bei München