Hi, here are some tests on an IBM server with btrfs vs. ext4.
Kernel: 2.6.29.1 Benchmark software: compilerbench with options -i 10 -r 30 CPU: Intel Xeon Quadcore E5310 Chipset: Intel 5000 Memory: 4 GB FB-DIMM DDR2-667 HDDs: 2x WD6400AAKS @ Raid0 Storage Controller: IBM Serveraid 8k btrfs Result: intial create total runs 10 avg 50.89 MB/s (user 0.85s sys 2.59s) create total runs 5 avg 23.62 MB/s (user 0.82s sys 2.55s) patch total runs 4 avg 11.35 MB/s (user 0.38s sys 2.22s) compile total runs 7 avg 66.33 MB/s (user 0.19s sys 1.32s) clean total runs 4 avg 195.76 MB/s (user 0.03s sys 0.50s) read tree total runs 2 avg 11.99 MB/s (user 0.66s sys 2.59s) read compiled tree total runs 1 avg 30.14 MB/s (user 0.88s sys 3.64s) delete tree total runs 2 avg 10.79 seconds (user 0.43s sys 3.39s) no runs for delete compiled tree stat tree total runs 4 avg 9.62 seconds (user 0.41s sys 1.03s) stat compiled tree total runs 1 avg 10.51 seconds (user 0.49s sys 1.19s) ext4 Result: intial create total runs 10 avg 96.09 MB/s (user 0.77s sys 1.34s) create total runs 5 avg 50.84 MB/s (user 0.82s sys 1.20s) patch total runs 4 avg 20.17 MB/s (user 0.28s sys 1.04s) compile total runs 7 avg 94.39 MB/s (user 0.17s sys 1.07s) clean total runs 4 avg 959.66 MB/s (user 0.03s sys 0.11s) read tree total runs 2 avg 14.67 MB/s (user 0.78s sys 1.26s) read compiled tree total runs 1 avg 31.96 MB/s (user 0.87s sys 2.31s) delete tree total runs 2 avg 2.14 seconds (user 0.34s sys 0.81s) no runs for delete compiled tree stat tree total runs 4 avg 1.82 seconds (user 0.40s sys 0.35s) stat compiled tree total runs 1 avg 1.83 seconds (user 0.35s sys 0.33s) Best regards, Morten -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
