On Sun, Nov 18, 2007 at 07:52:36AM -0800, Abhishek Rai wrote: > Thanks for the suggestion Matt. > > It took me some time to get compilebench working due to the known > issue with drop_caches due to circular lock dependency between > j_list_lock and inode_lock (compilebench triggers drop_caches quite > frequently). Here are the results for compilebench run with options > "-i 30 -r 30". I repeated the test 5 times on each of vanilla and mc > configurations. > > Setup: 4 cpu, 8GB RAM, 400GB disk. > > Average vanilla results > ========================================================================== > intial create total runs 30 avg 46.49 MB/s (user 1.12s sys 2.25s) > create total runs 5 avg 12.90 MB/s (user 1.08s sys 1.97s) > patch total runs 4 avg 8.70 MB/s (user 0.60s sys 2.31s) > compile total runs 7 avg 21.44 MB/s (user 0.32s sys 2.95s) > clean total runs 4 avg 59.91 MB/s (user 0.05s sys 0.26s) > read tree total runs 2 avg 21.85 MB/s (user 1.12s sys 2.89s) > read compiled tree total runs 1 avg 23.47 MB/s (user 1.45s sys 4.89s) > delete tree total runs 2 avg 13.18 seconds (user 0.64s sys 1.02s) > no runs for delete compiled tree > stat tree total runs 4 avg 4.76 seconds (user 0.70s sys 0.50s) > stat compiled tree total runs 1 avg 7.84 seconds (user 0.74s sys 0.54s) > > Average metaclustering results > ========================================================================== > intial create total runs 30 avg 45.04 MB/s (user 1.13s sys 2.42s) > create total runs 5 avg 15.64 MB/s (user 1.08s sys 1.98s) > patch total runs 4 avg 10.50 MB/s (user 0.61s sys 3.11s) > compile total runs 7 avg 28.07 MB/s (user 0.33s sys 4.06s) > clean total runs 4 avg 83.27 MB/s (user 0.04s sys 0.27s) > read tree total runs 2 avg 21.17 MB/s (user 1.15s sys 2.91s) > read compiled tree total runs 1 avg 22.79 MB/s (user 1.38s sys 4.89s) > delete tree total runs 2 avg 9.23 seconds (user 0.62s sys 1.01s) > no runs for delete compiled tree > stat tree total runs 4 avg 4.72 seconds (user 0.71s sys 0.50s) > stat compiled tree total runs 1 avg 6.50 seconds (user 0.79s sys 0.53s) > > Overall, metaclustering does better than vanilla except in a few cases.
Well it strikes me as about half up and half down, but the ups are indeed much more substantial. Looks quite promising. -- Mathematics is the supreme nostalgia of our time. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
