Messages in this thread | ![/](/images/icornerl.gif) | | Date | Sun, 6 Apr 2003 18:36:34 -0400 (EDT) | From | Zwane Mwaikambo <> | Subject | 2.5.66-(bk) == horrible response times for non X11 applications |
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The X server is not reniced nor are any of the called tasks. This is very easy to reproduce by doing the following;
open two xterms, run glxgears from one and then 5 or so seconds after that run an application which you can easily determine completion, such as ifconfig. You will notice that the console app doesn't make much progress and essentially get's starved.
ifconfig R 00000000 5738320 1213 1032 (NOTLB) Call Trace: [<c011ee20>] autoremove_wake_function+0x0/0x40 [<c02b6462>] generic_make_request+0x112/0x1b0 [<c011dc4d>] io_schedule+0x2d/0x40 [<c015851a>] __wait_on_buffer+0xba/0xc0 [<c011ee20>] autoremove_wake_function+0x0/0x40
glxgears S C010A1E8 4265977488 1209 1019 (NOTLB) Call Trace: [<c010a1e8>] common_interrupt+0x18/0x20 [<c01298d5>] schedule_timeout+0xb5/0xc0 [<c03e8490>] unix_poll+0x20/0x90 [<c0391e69>] sock_poll+0x19/0x20 [<c0169c22>] do_select+0x132/0x270 [<c0169960>] __pollwait+0x0/0xa0
Afflicted system was;
K6 500MHz laptop 128M RAM w/ 8M shared (Trident X11 Server)
This was not reproduceable with 2.4.18-3 nor with 2.5.66 and the following patch applied;
http://www.kernel.org/pub/linux/kernel/people/akpm/patches/2.5/2.5.66/2.5.66-mm3/broken-out/sched-interactivity-backboost-revert.patch
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