Messages in this thread | | | Date | Fri, 21 Jun 2002 18:19:52 -0600 | From | kwijibo@zianet ... | Subject | Re: [Lse-tech] Re: ext3 performance bottleneck as the number of spindles gets large |
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This web site may be of interest for this discussion: http://labs.zianet.com. I have benchmarks using NFS with ext3 there. It also compares ext3 with ReiserFS. The page is not quite complete but it has the benchmarks up.
Steven
Duc Vianney wrote:
>Andrew Morton wrote: > > >>If you have time, please test ext2 and/or reiserfs and/or ext3 >>in writeback mode. >> >> >I ran IOzone on ext2fs, ext3fs, JFS, and Reiserfs on an SMP 4-way >500MHz, 2.5GB RAM, two 9.1GB SCSI drives. The test partition is 1GB, >test file size is 128MB, test block size is 4KB, and IO threads varies >from 1 to 6. When comparing with other file system for this test >environment, the results on a 2.5.19 SMP kernel show ext3fs is having >performance problem with Writes and in particularly, with Random Write. >I think the BKL contention patch would help ext3fs, but I need to verify >it first. > >The following data are throughput in MB/sec obtained from IOzone >benchmark running on all file systems installed with default options. > > >Kernels 2519smp4 2519smp4 2519smp4 2519smp4 >No of threads=1 ext2-1t jfs-1t ext3-1t reiserfs-1t > >Initial write 138010 111023 29808 48170 >Rewrite 205736 204538 119543 142765 >Read 236500 237235 231860 236959 >Re-read 242927 243577 240284 242776 >Random read 204292 206010 201664 207219 >Random write 180144 180461 1090 121676 > >No of threads=2 ext2-2t jfs-2t ext3-2t reiserfs-2t > >Initial write 196477 143395 62248 55260 >Rewrite 261641 261441 126604 205076 >Read 292566 292796 313562 291434 >Re-read 302239 306423 341416 303424 >Random read 296152 295430 316966 288584 >Random write 253026 251013 958 203358 > >No of threads=4 ext2-4t jfs-4t ext3-4t reiserfs-4t > >Initial write 79513 172302 42051 48782 >Rewrite 256568 269840 124912 231395 >Read 290599 303669 327066 283793 >Re-read 289578 303644 327362 287531 >Random read 354011 353455 353806 351671 >Random write 279704 279922 2482 250498 > >No of threads=6 ext2-6t jfs-6t ext3-6t reiserfs-6t > >Initial write 98559 69825 59728 15576 >Rewrite 274993 286987 126048 232193 >Read 330522 326143 332147 326163 >Re-read 339672 328890 333094 326725 >Random read 348059 346154 347901 344927 >Random write 281613 280213 3659 227579 > >Cheers, >Duc J Vianney, dvianney@us.ibm.com >home page: http://www-124.ibm.com/developerworks/opensource/linuxperf/ >project page: http://www-124.ibm.com/developerworks/projects/linuxperf > > >- >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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