linux IO命令
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iostat -x 1 10000
查看实时的IO流量
iostat --help
Usage: iostat [ options... ] [ <interval> [ <count> ] ]
Options are:
[ -c | -d ] [ -k | -m ] [ -t ] [ -V ] [ -x ] [ -n ] [ -h ] [ -N ]
[ <device> [ ... ] | ALL ] [ -p [ <device> | ALL ] ]
Usage: iostat [ options... ] [ <interval> [ <count> ] ]
Options are:
[ -c | -d ] [ -k | -m ] [ -t ] [ -V ] [ -x ] [ -n ] [ -h ] [ -N ]
[ <device> [ ... ] | ALL ] [ -p [ <device> | ALL ] ]
sar -b -s 12:50:00 -e 13:20:00
查看历史IO流量
sar --help
Usage: sar [ options... ] [ <interval> [ <count> ] ]
Options are:
[ -A ] [ -b ] [ -B ] [ -c ] [ -d ] [ -i <interval> ] [ -p ] [ -q ]
[ -r ] [ -R ] [ -t ] [ -u ] [ -v ] [ -V ] [ -w ] [ -W ] [ -y ]
[ -I { <irq> | SUM | ALL | XALL } ] [ -P { <cpu> | ALL } ]
[ -n { DEV | EDEV | NFS | NFSD | SOCK | ALL } ]
[ -x { <pid> | SELF | ALL } ] [ -X { <pid> | SELF | ALL } ]
[ -o [ <filename> ] | -f [ <filename> ] ]
[ -s [ <hh:mm:ss> ] ] [ -e [ <hh:mm:ss> ] ]
Usage: sar [ options... ] [ <interval> [ <count> ] ]
Options are:
[ -A ] [ -b ] [ -B ] [ -c ] [ -d ] [ -i <interval> ] [ -p ] [ -q ]
[ -r ] [ -R ] [ -t ] [ -u ] [ -v ] [ -V ] [ -w ] [ -W ] [ -y ]
[ -I { <irq> | SUM | ALL | XALL } ] [ -P { <cpu> | ALL } ]
[ -n { DEV | EDEV | NFS | NFSD | SOCK | ALL } ]
[ -x { <pid> | SELF | ALL } ] [ -X { <pid> | SELF | ALL } ]
[ -o [ <filename> ] | -f [ <filename> ] ]
[ -s [ <hh:mm:ss> ] ] [ -e [ <hh:mm:ss> ] ]
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