On Thu, Jul 31, 2025 at 6:03 PM Carlos Rodriguez-Fernandez < carlosrodrifernan...@gmail.com> wrote:
> It went generally quick for me. > > If it is networking, you may see some large amount of retrans (segment > retrans, syn retrans, etc...) with `sar -n ETCP 1` while you are running sar cmd shows mostly 0's on retrseg/s column, so I believe we can discard this problem > > the command. It could also be even before the TCP transmission, during > the name resolution (generally UDP), see what `bpf-gethostlatency` tells > you. 1. $ sudo bpf-gethostlatency 2. TIME PID COMM LATms HOST 3. 09:12:33 704819 ConfigRefreshRu 2.070 eap.redhat.com 4. 09:12:36 1994894 fedpkg 173.941 koji.fedoraproject.org I think this is reasonable. Full output at https://paste.centos.org/view/8e7908a1 > Other tools like bpf-tcplife, or bpf-tcpconnlat can help to do some > latency analysis. > Thanks, I will try those > > > On 7/31/25 4:31 PM, Leo Sandoval wrote: > > This week I am experimenting long latencies when running > > > > `fedpkg srpm` > > > > (around 5 minutes, real time). > > > > `strace -c fedpkg srpm` is telling me that the 'wait4' syscall is the > > one consuming most of the time (85%) > > > > My network connection is not the fastest but running the rhpkg srpm I > > basically got instant results. Also, I am not sure if these delays > > started after the data center move but perhaps that may be a factor. > > > > Any idea how to debug this one? > > > -- > _______________________________________________ > devel mailing list -- devel@lists.fedoraproject.org > To unsubscribe send an email to devel-le...@lists.fedoraproject.org > Fedora Code of Conduct: > https://docs.fedoraproject.org/en-US/project/code-of-conduct/ > List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines > List Archives: > https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.org > Do not reply to spam, report it: > https://pagure.io/fedora-infrastructure/new_issue >
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