Messages in this thread | | | Date | Wed, 26 Feb 2003 10:23:09 -0800 | From | "Martin J. Bligh" <> | Subject | Re: [Lse-tech] [PATCH] New dcache / inode hash tuning patch |
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It actually seems a fraction slower (see systimes for Kernbench-16, for instance).
Kernbench-2: (make -j N vmlinux, where N = 2 x num_cpus) Elapsed User System CPU 2.5.62-mjb3 43.92 557.65 94.12 1483.50 2.5.62-mjb3-andi 44.28 557.90 95.79 1475.67
Kernbench-16: (make -j N vmlinux, where N = 16 x num_cpus) Elapsed User System CPU 2.5.62-mjb3 45.21 560.46 114.58 1492.67 2.5.62-mjb3-andi 45.39 561.29 117.73 1495.67
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 2.5.62-mjb3 100.0% 3.1% 2.5.62-mjb3-andi 101.8% 6.6%
SDET 2 (see disclaimer) Throughput Std. Dev 2.5.62-mjb3 100.0% 4.0% 2.5.62-mjb3-andi 96.4% 4.8%
SDET 4 (see disclaimer) Throughput Std. Dev 2.5.62-mjb3 100.0% 2.0% 2.5.62-mjb3-andi 100.4% 2.4%
SDET 8 (see disclaimer) Throughput Std. Dev 2.5.62-mjb3 100.0% 4.6% 2.5.62-mjb3-andi 100.3% 2.3%
SDET 16 (see disclaimer) Throughput Std. Dev 2.5.62-mjb3 100.0% 2.7% 2.5.62-mjb3-andi 96.6% 4.3%
SDET 32 (see disclaimer) Throughput Std. Dev 2.5.62-mjb3 100.0% 0.9% 2.5.62-mjb3-andi 97.0% 2.1%
SDET 64 (see disclaimer) Throughput Std. Dev 2.5.62-mjb3 100.0% 1.1% 2.5.62-mjb3-andi 100.2% 0.6%
Diffprofile (+ worse with your patch, - better)
500 3.1% total 138 6.9% .text.lock.file_table 103 2.2% default_idle 73 9.3% d_lookup 50 11.0% __copy_to_user_ll 45 27.4% file_move 40 28.2% path_lookup ... -7 -3.9% do_schedule -9 -2.0% get_empty_filp -10 -8.6% dput -10 -9.8% link_path_walk
That text.lock.file_table has been bugging me for a bit, and I need to drill down into it some more.
M.
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