Messages in this thread Patch in this message | ![/](/images/icornerl.gif) | | Date | Sat, 15 Apr 2006 14:52:27 -0700 | From | Andrew Morton <> | Subject | Re: Clear performance regression on reaim7 in 2.6.15-git6 |
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"Martin J. Bligh" <mbligh@google.com> wrote: > > drilling down into the results directories can get you the command line, > looks like "reaim -f workfile.short -s 1 -e 10 -i 2" to me. Buggered if > I can recall what that did though. > > (http://test.kernel.org/abat/20229/004.reaim.test/results/cmdline) > > I *think* it's only ia32 NUMA boxes, at least as far as I can see from > a quick poke around. Which would make me guess at scheduler code. Gitweb > would be nice to use, but it doesn't tag the -git snapshots, AFAICS, > which is a real shame. Nor does the git snapshot include the git tag, > as far as I know. Grrrr. I guess I'll download the snapshots and diff > them, and try to pull out the sched changes by hand. Much suckage.
The diffstat for 2.6.15-git5 -> 2.6.15-git6 is at http://www.zip.com.au/~akpm/linux/patches/stuff/2 - only a single line changed in sched.c:
diff -uNr 2.6.15-git5/kernel/sched.c 2.6.15-git6/kernel/sched.c --- 2.6.15-git5/kernel/sched.c 2006-04-15 14:10:43.000000000 -0700 +++ 2.6.15-git6/kernel/sched.c 2006-04-15 14:10:52.000000000 -0700 @@ -4386,6 +4386,7 @@ } while_each_thread(g, p); read_unlock(&tasklist_lock); + mutex_debug_show_all_locks(); } /** The below patches went from -mm into mainline on that day. It'll be pretty simple to bisection search these once we have a testcase.
"tiny-make-id16-support-optional" fixes nvidiafb: Fixes for new G5 printk levels for i386 oops code. ipmi: fix compile errors with PROC_FS=n Remove set_fs() in stop_machine() spufs: fix for recent "shrink dentry_struct" patch printk levels for spinlock debug kdump: i386 save ss esp bug fix kdump: dynamic per cpu allocation of memory for saving cpu registers kdump: export per cpu crash notes pointer through sysfs (fix) dump_thread() cleanup Kdump: i386 compiler warning fix Add list_for_each_entry_safe_reverse() fix /sys/class/net/<if>/wireless without dev->get_wireless_stats kexec: increase max segment limit Kdump documentation update kdump: x86_64 kexec on panic kdump: export per cpu crash notes pointer through sysfs remove ext3 xattr permission checks Kdump: powerpc and s390 build failure fix kdump: save registers early (inline functions) Disable rio on 64-bit platforms kdump: x86_64: add memmmap command line option remove ext2 xattr permission checks kdump: x86_64: add elfcorehdr command line option remove reiserfs xattr permission checks kprobes: cleanup include/asm/kprobes.h remove xfs xattr permission checks move xattr permission checks into the VFS remove jfs xattr permission checks i386: GPIO driver for AMD CS5535/CS5536 per-mountpoint noatime/nodiratime switch autofs4 to touch_atime() ->compat_ioctl for 390 tape_char kdump: read previous kernel's memory remove update_atime hrtimer: coding style and white space cleanup remove asm/serial.h from synclink_gt. media-radio: Maestro types change kdump: x86_64 save cpu registers upon crash kprobes: arch_remove_kprobe hrtimer: clean up mktime and make arguments const kprobes-changed-from-using-spinlock-to-mutex fix hrtimer: remove unused clock constants hrtimer: move div_long_long_rem out of jiffies.h hrtimer: hrtimer documentation 9p: remove superflous MS_NODIRATIME assignment hrtimer: hrtimer core code nvidiafb: i2c bus name beautification __deprecated_for_modules the lookup_hash() prototype switch fs3270 to ->compat_ioctl media-radio: Pci probing for maestro radio kprobes: enable funcions only for required arch fbcon: Sanitize fbcon kexec: change CONFIG_PHYSICAL_START dependency fbdev: rivafb: Driver cleanups hrtimer: introduce ktime_t time format hrtimer: switch itimers to hrtimer hrtimer: coding style and white space cleanup 2 hrtimer: make clockid_t arguments const Generic ioctl.h remove TIOCGSERIAL/TIOCSSERIAL compat_ioctl entries for 390 hrtimer: validate timespec of do_sys_settimeofday sanitize building of fs/compat_ioctl.c matroxfb: Remove fbcon.h from the main header file ntfs: remove superflous MS_NOATIME/MS_NODIRATIME assignments don't include ioctl32.h in drivers replace inode_update_time with file_update_time hrtimer: coding style clean up of clock constants hrtimer: switch sys_nanosleep to hrtimer fbcon: Store struct display when setting all vcs kprobes: changed from using spinlock to mutex hrtimer: export deinlined mktime hrtimer: create and use timespec_valid macro vesafb: Drop blank hook add vfs_* helpers for xattr operations d_instantiate_unique / NFS inode leakage Kprobes: conversion from kcalloc to kzalloc media-radio: Maestro avoid accessing private structures directly nfs: sleep_on() removal Switch getnstimestamp() calls to ktime_get_ts() savagefb: One more I2C-enabled device in savagefb common compat_sys_timer_create media-radio: Maestro radio delete owner line from video device Remove getnstimestamp() kprobes: fix build breakage Export ktime_get_ts() move rtc compat ioctl handling to fs/compat_ioctl.c add ->compat_ioctl to dasd hrtimer: convert posix timers completely hrtimer: switch clock_nanosleep to hrtimer nanosleep API fbdev: i810fb: Driver cleanups hrtimer: deinline mktime and set_normalized_timespec aty: remove unnecessary CONFIG_PCI media-radio: Maestro radio Lindent hrtimer: remove duplicate div_long_long_rem implementation Add sysfs entry to disable framebuffer access hrtimer: create hrtimer nanosleep API hrtimer: introduce nsec_t type and conversion functions fbdev: savagefb: Driver cleanup fbdev: neofb: Driver cleanups fbdev: tdfxfb: Driver cleanups fbdev: hgafb: Convert to platform device fbdev: asiliantfb: Driver cleanups atyfb: Fix spelling Fix vesafb display panning regression nvidiafb: Add support for some pci-e chipsets DocBook: fix kernel-doc comments Docs update: remove obsolete patch from locks.txt turn "const static" into "static const" Fix console blanking fbdev: Fix return code of fb_read and fb_write fbdev: imsttfb: Driver cleanups fbdev: nvidiafb: Driver cleanup Docs update: small spelling, formating etc fixes for filesystems/ext3.txt char/isicom: Other little changes vga16fb: Trim vga16fb_pan_display rivafb: Trim rivafb_pan_display Docs update: small fixes to stable_kernel_rules.txt Serial: disable jsm in ppc64 defconfig fbdev: sstfb: Driver cleanups vesafb: Trim vesafb_pan_display skeletonfb: Documentation update fs/binfmt_elf: Remove unneeded kmalloc() return value casts fbdev: pm2fb: Driver cleanups Add git tree for DocBook CodingStyle correction char/isicom: Type conversion and variables deletion include/video/newport.h: "extern inline" -> "static inline" DocBook: warn for missing macro parameters fs/ext3/: small cleanups fbcon: Code cleanups fbdev: fbdev: Cleanup nvidiafb: Add boot option 'bpp' savagefb: Trim savagefb_pan_display drivers/video/: possible cleanups DocBook: add .gitignore file non-linear frame buffer read/write access fs/ext2/bitmap.c: ext2_count_free() is only required #ifdef EXT2FS_DEBUG fbdev: Reduce stack usage s3c2410fb: cleanup and fix fbdev: atyfb: Remove BIOS-less booting drivers/char: Use ARRAY_SIZE macro fbcon: disable ywrap if not supported by fbcon scrolling code atyfb: Reduce verbosity Docs update: typos, corrections and additions to applying-patches.txt i810fb: Fix suspend and resume hooks atyfb: LT/LG cleanup atyfb: Rage XL/XC cleanup include/asm-sh64/: "extern inline" -> "static inline" tty-layer-buffering-revamp: jsm is broken atyfb: VT/GT cleanup atyfb: Don't stretch with CRT atyfb: Set ECP divider fbdev: kyrofb: Driver cleanups fbdev: Replace kmalloc with kzalloc fs/hfsplus/: remove the hfsplus_inode_check() debug function Decrease number of pointer derefs in exit.c atyfb: Fix CRTC_FIFO_LWM mask video/matrox/matroxfb_misc.c: remove dead code atyfb: Fix interlaced modes nvidiafb: Reduce stack usage vr41xx: ARRAY_SIZE cleanup char/isicom: Firmware loading include/linux/sched.h: no need to guard the normalize_rt_tasks() prototype char/isicom: Whitespace cleanup char/isicom: More whitespaces and coding style char/isicom: Pci probing added Decrease number of pointer derefs in multipath.c drivers/net/irda/irport.c: cleanups kernel/resource.c: __check_region(): remove pointless __deprecated fbdev: Typos in Kconfig let MAGIC_SYSRQ no longer depend on DEBUG_KERNEL lib/zlib*: cleanups atyfb: Improve blanking selinux: Remove unneeded k[cm]alloc() return value casts n_hdlc.c: remove unused declaration clean up computone remaining cli use TTY layer buffering revamp
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