????????????????????????

????????????????????????????????????????????????????????μ??????????????ж???????????????????ó????????????????????????????????????????IOPS??OPS????????????????????С????????????????????????????????????????????????У???????????????????μ?????????????С????????????????????email server??fileserver??videoserver??webserver??????μ?OPS??IOPS??????????????IO????????????Iozone??Postmark??Fio??filebench???

??????????????????

??????1?? LTP

????LTP??Linux Test Project??????SGI??IBM?????????????????????Linux???????????????????????????????????????POSIX?????????????????LTP????2000????????????????????????н??ж????????LTP??????????????????????????????????????????????????????????????????????

??????2?? fstest

????fstest??????????????POSIX?????????????????????????FreeBSD?? Solaris?? Linux?????????UFS?? ZFS?? ext3?? XFS and the NTFS-3G?????????fstest????3601????????????????????????????chmod?? chown?? link?? mkdir?? mkfifo?? open?? rename?? rmdir?? symlink?? truncate?? unlink??

??????3?? locktests

????locktest????fcntl??????????????????????????????????????????????????Χ??????????????????????????????????read?? write?? ??????????????Щ??????????????????????￡??????????????????????????????????????????

??????4?? PCTS

????PCTS??Posix Complicance Testing Suite????POSIX????????????????POSIX????????????????????????????????????????????????????POSIX?????????????????IEEE std2003.1??PCTS???????????????PCTS?????VSX-PCTS??NIST-PCTS??OPTS-PCTS?????????????????????VSX-PCTS??

??????5?? Iozone

????Iozone??????÷??????????????????????????????????????????????????????read?? write?? re-read?? re-write?? read backwards?? read strided?? fread?? fwrite?? random read?? pread ??mmap?? aio_read?? aio_write???????Iozone??????????????????????????????????????????????????????????????????????????

??????6?? Postmark

????Postmark ????? NAS ???? NetApp ??????????????????????洢?????Postmark??????????????????????????????????????????????????????????????????????С????? Postmark ??????????????????????????????????????С????????趨?????????????????????????? Postmark ?????????????е????? transaction ??????????????????????????????趨?????????????δ????????????????ζ???????????????Щ????￡???????????????????????????? Postmark ???????????? / ???????? / ?????????????????????????????????????????????? Post ?????????????????????????????????????? Postmark????????????????????????????????????????????????????á????????б?????????????????????????????????????????????????????????????????????????????????????д?????????????

??????7?? fio

????fio?????I/O???????????????????????????13?????????I/O???棨sync?? mmap?? libaio?? posixaio?? SG v3?? splice?? null?? network?? syslet?? guasi?? solarisaio?????I/O priorities ??for newer Linux kernels???? rate I/O?? forked or threaded jobs????fio?????????豸?????????????????????????QA??????????????Linux?? FreeBSD?? NetBSD?? OS X?? OpenSolaris?? AIX?? HP-UX?? Windows?????????

??????8?? filebench

????Filebench ?????????????????????????????????????????????÷??????????????????????????????????????????????????????? copyfiles?? createfiles?? randomread?? randomwrite ?????????????渴?????ó????? varmail?? fileserver?? oltp?? dss?? webserver?? webproxy ???? Filebench ??????????????????????????????????????????????????????????????????????