Messages in this thread | | | Date | Tue, 07 Jun 2005 16:50:39 -0700 | From | "Martin J. Bligh" <> | Subject | 2.6.12-rc6-mm1 |
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Wheeee! it actually compiles and boots for me on x86 ;-)
http://ftp.kernel.org/pub/linux/kernel/people/mbligh/abat/perf/kernbench.moe.png
Seems to show that perf is rather sucky on kernbench though.
baseline (-rc6) data is here:
http://ftp.kernel.org/pub/linux/kernel/people/mbligh/abat/4760/kernbench.test/
-mm1 is here:
http://ftp.kernel.org/pub/linux/kernel/people/mbligh/abat/4876/kernbench.test/
Diffprofile is wacko (HZ seems to be defaulting to 250 in -mm). If I factor it by 4x, I get:
47796 10.9% total 16644 30.5% buffered_rmqueue 15574 7.7% default_idle 2229 239.4% kmem_cache_free 1782 11.1% zap_pte_range 1752 0.0% inotify_inode_queue_event 1467 36.3% release_pages 1281 73.3% set_page_dirty 1155 12.8% do_wp_page 924 8.3% _spin_lock 896 0.0% find_idlest_group 828 21.7% free_hot_cold_page 780 0.0% drain_remote_pages 772 0.0% dput_recursive 464 0.0% inotify_dentry_parent_queue_event ... -412 -8.1% __d_lookup -508 -98.4% find_idlest_cpu -542 -24.5% do_anonymous_page -549 -47.5% current_fs_time -580 -100.0% del_timer_sync -594 -86.6% dput -695 -31.4% __copy_user_intel -1461 -13.9% strnlen_user
Buggered if I know what that is from. I'm guessing scheduler, or the HZ change. I guess I can rerun with the HZ set to 1000 ... you got any experimental scheduler stuff in your tree?
Else I guess it's some memory allocator stuff maybe? - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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