Messages in this thread |  | | Date | Sun, 02 Feb 2003 18:38:27 -0800 | From | "Martin J. Bligh" <> | Subject | Benchmarking 59 vs -mm vs -mjb |
| |
Some benchmarks on 16-way NUMA-Q w/ 16 Gb RAM.
Kernbench-2: (make -j N vmlinux, where N = 2 x num_cpus) Elapsed User System CPU 2.5.59 46.08 563.88 118.38 1480.00 2.5.59-mjb1 45.99 566.45 111.98 1474.67 2.5.59-mjb2 45.56 564.81 113.29 1487.83 2.5.59-mjb3 45.66 565.33 110.18 1479.00 2.5.59-mm6 45.95 563.16 115.85 1477.50
DISCLAIMER: SPEC(tm) and the benchmark name SDET(tm) are registered trademarks of the Standard Performance Evaluation Corporation. This benchmarking was performed for research purposes only, and the run results are non-compliant and not-comparable with any published results.
Results are shown as percentages of the first set displayed
SDET 1 (see disclaimer) Throughput Std. Dev 2.5.59 100.0% 0.8% 2.5.59-mjb1 94.4% 2.0% 2.5.59-mjb2 96.1% 2.8% 2.5.59-mjb3 96.7% 4.1% 2.5.59-mm6 100.4% 0.7%
SDET 64 (see disclaimer) Throughput Std. Dev 2.5.59 100.0% 0.7% 2.5.59-mjb1 119.9% 0.8% 2.5.59-mjb2 122.3% 0.8% 2.5.59-mjb3 122.6% 0.4% 2.5.59-mm6 102.7% 0.8%
NUMA schedbench 64: AvgUser Elapsed TotalUser TotalSys 2.5.59 0.00 235.18 3632.73 15.45 2.5.59-mjb1 0.00 232.06 3658.60 15.38 2.5.59-mjb2 0.00 233.38 3618.16 15.20 2.5.59-mjb3 0.00 236.59 3627.47 15.24 2.5.59-mm6 0.00 239.24 3634.88 15.89
----------------------------------------
Summary:
Kernbench is mainly boosted by dcache_rcu and wli's pfn_to_nid and pgd_ctor changes. (note the system times).
Going from virgin to -mjb gives a small degredation on SDET 1,2,4. but a good boost on SDET 8 up to 64. I presume this is a NUMA scheduler effect, but haven't confirmed yet. I have Ingo's B0 patch apart from the topo cleanup ... not really too worried about this - slight effect on a huge machine at very low loads.
NUMA schedbench results are really very boring.
-----------------------------------------
kernbench-2 diffprofile 2.5.59 2.5.59-mjb3 (+ is worse in -mjb, - better).
2541 do_schedule 2112 .text.lock.file_table 422 file_move 265 prepare_to_wait 215 get_empty_filp 186 kmem_cache_alloc 121 find_get_page 116 eventpoll_init_file 95 do_anonymous_page 94 vm_enough_memory 91 file_ra_state_init 80 __copy_to_user_ll 72 vfs_read 58 mark_page_accessed 56 default_wake_function 52 __wake_up 51 pte_chain_alloc ... -51 strnlen_user -51 profile_exit_mmap -61 __pte_chain_free -68 buffered_rmqueue -71 .text.lock.dcache -84 fd_install -101 kmem_cache_free -115 eventpoll_release -171 may_open -173 path_lookup -179 find_trylock_page -183 kmalloc -235 vfs_follow_link -248 clear_page_tables -259 prepare_to_wait_exclusive -274 pgd_alloc -441 path_release -624 dput -625 pfn_to_nid -889 default_idle -931 current_kernel_time -933 __fput -1135 dget_locked -1382 link_path_walk -2060 __d_lookup -2398 schedule -2881 .text.lock.dec_and_lock -5163 .text.lock.namei -8863 total
---------------------------------------------------------
SDET 64 diffprofile 2.5.59 2.5.59-mjb3 (+ is worse in -mjb, - better).
56544 default_idle 8837 __down 7385 do_schedule 3538 page_remove_rmap 2830 .text.lock.file_table 2665 __wake_up 1429 page_add_rmap 1209 d_lookup 873 find_get_page 799 follow_mount 458 release_pages 425 kmem_cache_alloc 418 file_move 360 get_empty_filp 272 ext2_new_block 263 ext2_free_blocks 261 vfs_read ... -245 .text.lock.dir -284 pte_alloc_one -288 may_open -307 set_fs_pwd -309 proc_check_root -358 find_trylock_page -360 vfs_follow_link -371 real_lookup -425 open_namei -430 sys_unlink -436 pfn_to_nid -489 d_delete -524 d_rehash -568 __fput -570 prune_dcache -598 kmalloc -717 d_alloc -865 pgd_alloc -920 dput -1053 d_instantiate -1233 path_release -1275 dget_locked -1293 kmem_cache_free -1354 .text.lock.attr -1502 .text.lock.namespace -1646 .text.lock.base -1750 clear_page_tables -2063 current_kernel_time -2373 __d_lookup -2774 link_path_walk -3407 do_lookup -4215 schedule -5388 atomic_dec_and_lock -7874 path_lookup -25037 .text.lock.dcache -33737 .text.lock.dec_and_lock -55200 .text.lock.namei -73012 total
---------------------------------------------------
SDET 1 diffprofile 2.5.59 2.5.59-mjb3 (+ is worse in -mjb, - better). (though the tick count is small, this is the average of 5 runs).
988 total 930 default_idle 10 d_lookup 8 page_remove_rmap 8 do_schedule 7 page_add_rmap 6 __copy_to_user_ll 5 kmem_cache_alloc 5 do_wp_page ... -5 schedule -6 link_path_walk -7 pfn_to_nid -12 __d_lookup
- 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/
|  |