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[[!meta copyright="Copyright © 2011, 2012 Free Software Foundation, Inc."]]
[[!meta license="""[[!toggle id="license" text="GFDL 1.2+"]][[!toggleable
id="license" text="Permission is granted to copy, distribute and/or modify this
document under the terms of the GNU Free Documentation License, Version 1.2 or
any later version published by the Free Software Foundation; with no Invariant
Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license
is included in the section entitled [[GNU Free Documentation
License|/fdl]]."]]"""]]
[[!meta title="Degradation of GNU/Hurd ``system performance''"]]
[[!tag open_issue_gnumach open_issue_hurd]]
[[!toc]]
# Email, [[!message-id "87mxg2ahh8.fsf@kepler.schwinge.homeip.net"]] (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
[...]
# IRC, freenode, #hurd, 2011-09-22
See [[/open_issues/pagers]], IRC, freenode, #hurd, 2011-09-22.
# [[ext2fs_page_cache_swapping_leak]]
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