SysStat : How to use2024/05/28 |
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How to use SysStat.
To input [sar] command with specifying options like follows, it's possible to display logs. (refer to [man sar] for more details)
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| [1] | Display today's statistics reports. |
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# CPU root@dlp:~# sar -u Linux 6.8.0-31-generic (dlp.srv.world) 05/28/24 _x86_64_ (2 CPU) 02:42:59 LINUX RESTART (2 CPU) 02:45:01 CPU %user %nice %system %iowait %steal %idle 02:50:04 all 0.06 0.00 0.05 0.04 0.00 99.85 02:55:01 all 0.00 0.00 0.00 0.01 0.00 99.99 03:00:04 all 0.00 0.00 0.00 0.02 0.00 99.97 03:05:01 all 0.00 0.00 0.00 0.01 0.00 99.99 03:10:01 all 0.02 0.00 0.01 0.02 0.00 99.96 03:15:04 all 0.00 0.00 0.00 0.01 0.00 99.98 03:20:01 all 0.30 0.25 0.18 0.18 0.00 99.09 Average: all 0.06 0.04 0.04 0.04 0.00 99.83 # memory root@dlp:~# sar -r Linux 6.8.0-31-generic (dlp.srv.world) 05/28/24 _x86_64_ (2 CPU) 02:42:59 LINUX RESTART (2 CPU) 02:45:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 02:50:04 3597672 3615612 126676 3.16 16932 211236 186576 2.33 208452 46112 88 02:55:01 3596916 3614920 127404 3.18 16988 211232 186572 2.33 208540 46172 0 03:00:04 3596676 3615328 126848 3.16 17516 211232 186572 2.33 208460 46692 4 03:05:01 3594912 3613712 128460 3.20 17556 211324 188204 2.35 209888 46748 168 03:10:01 3566196 3614480 127056 3.17 18160 239948 276940 3.45 243212 48228 4 03:15:04 3566196 3615028 126568 3.16 18224 240420 221620 2.76 238240 48312 168 03:20:01 3380380 3606080 132640 3.31 18812 414784 258228 3.22 202140 262532 0 Average: 3556993 3613594 127950 3.19 17741 248597 214959 2.68 216990 77828 62 # I/O root@dlp:~# sar -b Linux 6.8.0-31-generic (dlp.srv.world) 05/28/24 _x86_64_ (2 CPU) 02:42:59 LINUX RESTART (2 CPU) 02:45:01 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 02:50:04 1.77 0.69 1.08 0.00 61.35 13.32 0.00 02:55:01 0.22 0.00 0.22 0.00 0.00 2.40 0.00 03:00:04 0.76 0.38 0.39 0.00 3.01 4.04 0.00 03:05:01 0.18 0.00 0.18 0.00 0.00 1.81 0.00 03:10:01 1.80 1.31 0.48 0.00 193.73 6.56 0.00 03:15:04 0.33 0.02 0.31 0.00 3.03 3.56 0.00 03:20:01 16.80 5.59 2.30 8.92 1167.62 1291.42 163021.58 Average: 3.10 1.13 0.71 1.26 202.52 187.17 23052.73 # network root@dlp:~# sar -n DEV Linux 6.8.0-31-generic (dlp.srv.world) 05/28/24 _x86_64_ (2 CPU) 02:42:59 LINUX RESTART (2 CPU) 02:45:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 02:50:04 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:50:04 enp1s0 0.67 0.03 0.04 0.00 0.00 0.00 0.00 0.00 02:55:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:55:01 enp1s0 0.72 0.00 0.07 0.00 0.00 0.00 0.00 0.00 03:00:04 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:00:04 enp1s0 0.56 0.01 0.04 0.00 0.00 0.00 0.00 0.00 03:05:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:05:01 enp1s0 0.77 0.00 0.08 0.00 0.00 0.00 0.00 0.00 03:10:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:10:01 enp1s0 0.92 0.00 0.06 0.00 0.00 0.00 0.00 0.00 03:15:04 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:15:04 enp1s0 0.66 0.00 0.07 0.00 0.00 0.00 0.00 0.00 03:20:01 lo 0.10 0.10 0.02 0.02 0.00 0.00 0.00 0.00 03:20:01 enp1s0 2.42 1.93 4.10 0.15 0.00 0.00 0.00 0.00 Average: lo 0.01 0.01 0.00 0.00 0.00 0.00 0.00 0.00 Average: enp1s0 0.96 0.28 0.63 0.02 0.00 0.00 0.00 0.00 # load avarage root@dlp:~# sar -q Linux 6.8.0-31-generic (dlp.srv.world) 05/28/24 _x86_64_ (2 CPU) 02:42:59 LINUX RESTART (2 CPU) 02:45:01 runq-sz plist-sz ldavg-1 ldavg-5 ldavg-15 blocked 02:50:04 0 151 0.00 0.00 0.00 0 02:55:01 0 149 0.00 0.00 0.00 1 03:00:04 0 149 0.00 0.00 0.00 1 03:05:01 1 149 0.00 0.00 0.00 0 03:10:01 0 159 0.00 0.00 0.00 1 03:15:04 0 153 0.00 0.00 0.00 0 03:20:01 0 159 0.00 0.00 0.00 1 Average: 0 153 0.00 0.00 0.00 1 |
| [2] | Display past statistics with specifying a log file. Log files are stored under the [/var/log/sa] directory by default. |
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# display all statistics by a log file root@dlp:~# sar -A -f /var/log/sysstat/sa28 Linux 6.8.0-31-generic (dlp.srv.world) 05/28/24 _x86_64_ (2 CPU) 02:42:59 LINUX RESTART (2 CPU) 02:45:01 CPU %usr %nice %sys %iowait %steal %irq %soft %guest %gnice %idle 02:50:04 all 0.06 0.00 0.05 0.04 0.00 0.00 0.00 0.00 0.00 99.85 02:50:04 0 0.08 0.00 0.05 0.07 0.00 0.00 0.00 0.00 0.00 99.80 02:50:04 1 0.04 0.00 0.06 0.01 0.00 0.00 0.00 0.00 0.00 99.89 ..... ..... 02:45:01 %smem-10 %smem-60 %smem-300 %smem %fmem-10 %fmem-60 %fmem-300 %fmem 02:50:04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 02:55:01 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:00:04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:05:01 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:10:01 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:15:04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:20:01 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 # display the load average with specifying times by a log file root@dlp:~# sar -q -s 03:00:00 -e 04:00:00 -f /var/log/sysstat/sa28 Linux 6.8.0-31-generic (dlp.srv.world) 05/28/24 _x86_64_ (2 CPU) 03:00:04 runq-sz plist-sz ldavg-1 ldavg-5 ldavg-15 blocked 03:05:01 1 149 0.00 0.00 0.00 0 03:10:01 0 159 0.00 0.00 0.00 1 03:15:04 0 153 0.00 0.00 0.00 0 03:20:01 0 159 0.00 0.00 0.00 1 Average: 0 155 0.00 0.00 0.00 0 |
| [3] | Display current statistics. |
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# display CPU utilization per a second 3 times root@dlp:~# sar -u 1 3 Linux 6.8.0-31-generic (dlp.srv.world) 05/28/24 _x86_64_ (2 CPU) 03:29:38 CPU %user %nice %system %iowait %steal %idle 03:29:39 all 0.00 0.00 0.00 0.00 0.00 100.00 03:29:40 all 0.00 0.00 0.00 0.00 0.00 100.00 03:29:41 all 0.00 0.00 0.00 0.50 0.00 99.50 Average: all 0.00 0.00 0.00 0.17 0.00 99.83 # display I/O and network per 2 seconds 5 times root@dlp:~# sar -b -n DEV 2 5 Linux 6.8.0-31-generic (dlp.srv.world) 05/28/24 _x86_64_ (2 CPU) 03:30:10 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 03:30:12 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:30:10 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 03:30:12 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:30:12 enp1s0 0.50 0.00 0.03 0.00 0.00 0.00 0.00 0.00 03:30:12 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 03:30:14 0.00 0.00 0.00 0.00 0.00 0.00 0.00 ..... ..... 03:30:18 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 03:30:20 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:30:20 enp1s0 0.50 0.00 0.03 0.00 0.00 0.00 0.00 0.00 Average: tps rtps wtps dtps bread/s bwrtn/s bdscd/s Average: 0.60 0.00 0.60 0.00 0.00 5.60 0.00 Average: IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: enp1s0 0.50 0.00 0.03 0.00 0.00 0.00 0.00 0.00 |
| [4] | SysStat packages includes other commands not only [Sar] command, so it's possible to display current statistics with them like follows. |
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# display I/O with Mega bytes per 2 seconds root@dlp:~# iostat -mx -d 2 Linux 6.8.0-31-generic (dlp.srv.world) 05/28/24 _x86_64_ (2 CPU) Device r/s rMB/s rrqm/s %rrqm r_await rareq-sz w/s wMB/s wrqm/s %wrqm w_await wareq-sz d/s dMB/s drqm/s %drqm d_await dareq-sz f/s f_await aqu-sz %util dm-0 3.12 0.14 0.00 0.00 0.19 44.86 1.20 0.07 0.00 0.00 0.60 57.81 0.87 7.23 0.00 0.00 0.04 8513.83 0.00 0.00 0.00 0.14 loop0 0.00 0.00 0.00 0.00 0.00 1.27 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 vda 2.45 0.14 0.78 24.13 0.19 58.03 0.84 0.07 0.42 33.36 1.04 82.93 0.88 7.84 0.00 0.00 0.05 9142.26 0.15 3.55 0.00 0.14 Device r/s rMB/s rrqm/s %rrqm r_await rareq-sz w/s wMB/s wrqm/s %wrqm w_await wareq-sz d/s dMB/s drqm/s %drqm d_await dareq-sz f/s f_await aqu-sz %util dm-0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 loop0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 vda 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 ..... ..... # display all CPU utilization per 2 seconds 3 times root@dlp:~# mpstat -P ALL 2 3 Linux 6.8.0-31-generic (dlp.srv.world) 05/28/24 _x86_64_ (2 CPU) 03:31:41 CPU %usr %nice %sys %iowait %irq %soft %steal %guest %gnice %idle 03:31:43 all 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 100.00 03:31:43 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 100.00 03:31:43 1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 100.00 03:31:43 CPU %usr %nice %sys %iowait %irq %soft %steal %guest %gnice %idle 03:31:45 all 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 100.00 03:31:45 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 100.00 03:31:45 1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 100.00 03:31:45 CPU %usr %nice %sys %iowait %irq %soft %steal %guest %gnice %idle 03:31:47 all 0.00 0.00 0.25 0.25 0.00 0.00 0.00 0.00 0.00 99.50 03:31:47 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 100.00 03:31:47 1 0.00 0.00 0.50 0.50 0.00 0.00 0.00 0.00 0.00 99.00 Average: CPU %usr %nice %sys %iowait %irq %soft %steal %guest %gnice %idle Average: all 0.00 0.00 0.08 0.08 0.00 0.00 0.00 0.00 0.00 99.83 Average: 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 100.00 Average: 1 0.00 0.00 0.17 0.17 0.00 0.00 0.00 0.00 0.00 99.67 # display memory utilization of specific process per a second 3 times root@dlp:~# pidstat -r -p 678 1 3 Linux 6.8.0-31-generic (dlp.srv.world) 05/28/24 _x86_64_ (2 CPU) 03:33:39 UID PID minflt/s majflt/s VSZ RSS %MEM Command 03:33:40 103 678 0.00 0.00 222508 6144 0.15 rsyslogd 03:33:41 103 678 0.00 0.00 222508 6144 0.15 rsyslogd 03:33:42 103 678 0.00 0.00 222508 6144 0.15 rsyslogd Average: 103 678 0.00 0.00 222508 6144 0.15 rsyslogd # display CIFS statistics with Mega bytes per a 1 second 3 times root@dlp:~# cifsiostat -m 1 3 Filesystem: rB/s wB/s rops/s wops/s fo/s fc/s fd/s \\10.0.0.100\tmp 0.00 20.93 0.00 0.00 0.00 0.00 0.00 ..... ..... |
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