id:"email@example.com" (bug-hurd, 2011-07-25, Thomas Schwinge)
Building a certain GCC configuration on a freshly booted system: 11 h. Remove build tree, build it again (2nd): 12 h 50 min. Huh. Remove build tree, reboot, build it again (1st): back to 11 h. Remove build tree, build it again (2nd): 12 h 40 min. Remove build tree, build it again (3rd): 15 h.
IRC, freenode, #hurd, 2011-07-23:
< antrik> tschwinge: yes, the system definitely gets slower with time. after running for a couple of weeks, it needs at least twice as long to open a new shell for example < antrik> I don't know whether this is only related to swap usage, or there are some serious fragmentation issues < braunr> antrik: both could be induced by fragmentation
During IPC virtual copy testing
IRC, freenode, #hurd, 2011-09-02:
<manuel> interestingly, running it several times has made the performance drop quite much (i'm getting 400-500MB/s with 1M now, compared to nearly 800 fifteen minutes ago) <braunr> manuel: i observed the same behaviour [...]
See pagers, IRC, freenode, #hurd, 2011-09-22.