Re: [patch] CFS scheduler, -v19

From: Bill Davidsen
Date: Thu Jul 19 2007 - 22:33:29 EST


Ingo Molnar wrote:
* Bill Davidsen <davidsen@xxxxxxx> wrote:

Does the patch below help?
Spectacularly no! With this patch the "glitch1" script with multiple scrolling windows has all xterms and glxgears stop totally dead for ~200ms once per second. I didn't properly test anything else after that.

Bill, could you try the patch below - does it fix the automount problem, without introducing new problems?

Okay, as noted off-list, after I exported the xtime_seconds it now builds and works. However, there are a *lot* of "section mismatches" which are not reassuring.

Boots, runs, glitch1 test runs reasonably smoothly. automount has not used significant CPU yet, but I don't know what triggers it, the bad behavior did not happen immediately without the patch. However, it looks very hopeful.

Warnings attached to save you the trouble...

--
Bill Davidsen <davidsen@xxxxxxx>
"We have more to fear from the bungling of the incompetent than from
the machinations of the wicked." - from Slashdot
Script started on Thu 19 Jul 2007 05:29:08 PM EDT
Common profile 1.13 lastmod 2006-01-04 22:43:25-05
No common directory available
Session time 17:29:08 on 07/19/07
posidon:davidsen> time nice -10 make -j4 -s; sleep 2; exit
CHK include/linux/version.h
CHK include/linux/utsrelease.h
CHK include/linux/compile.h
CHK include/linux/compile.h
UPD include/linux/compile.h
CHK include/linux/version.h
Building modules, stage 2.
WARNING: vmlinux(.text+0xc1001183): Section mismatch: reference to .init.text:start_kernel (between 'is386' and 'check_x87')
WARNING: vmlinux(.text+0xc1213fb4): Section mismatch: reference to .init.text: (between 'rest_init' and 'kthreadd_setup')
WARNING: vmlinux(.text+0xc1218786): Section mismatch: reference to .init.text: (between 'iret_exc' and '_etext')
WARNING: vmlinux(.text+0xc1218792): Section mismatch: reference to .init.text: (between 'iret_exc' and '_etext')
WARNING: vmlinux(.text+0xc121879e): Section mismatch: reference to .init.text: (between 'iret_exc' and '_etext')
WARNING: vmlinux(.text+0xc12187aa): Section mismatch: reference to .init.text: (between 'iret_exc' and '_etext')
WARNING: vmlinux(.text+0xc1214071): Section mismatch: reference to .init.text:__alloc_bootmem_node (between 'alloc_node_mem_map' and 'zone_wait_table_init')
WARNING: vmlinux(.text+0xc1214117): Section mismatch: reference to .init.text:__alloc_bootmem_node (between 'zone_wait_table_init' and 'schedule')
WARNING: vmlinux(.text+0xc10fbaae): Section mismatch: reference to .init.text:__alloc_bootmem (between 'vgacon_startup' and 'vgacon_scrolldelta')
WARNING: vmlinux(.text+0xc1218eda): Section mismatch: reference to .init.text: (between 'iret_exc' and '_etext')
Root device is (253, 0)
Setup is 11240 bytes (padded to 11264 bytes).
System is 1915 kB
Kernel: arch/i386/boot/bzImage is ready (#3)

real 4m11.024s
user 2m5.121s
sys 0m30.952s
exit

Script done on Thu 19 Jul 2007 05:33:35 PM EDT