SysStat : How to use2021/08/05 |
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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 statics reports. |
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# CPU [root@dlp ~]# sar -u Linux 4.18.0-305.3.1.el8_4.x86_64 (dlp.srv.world) 08/05/2021 _x86_64_ (2 CPU) 11:37:25 LINUX RESTART (2 CPU) 11:40:06 AM CPU %user %nice %system %iowait %steal %idle 11:50:15 AM all 0.01 0.00 0.01 0.00 0.00 99.98 12:00:15 PM all 0.01 0.00 0.02 0.00 0.00 99.98 12:10:15 PM all 0.01 0.00 0.02 0.00 0.00 99.97 12:20:15 PM all 0.01 0.07 0.03 0.00 0.00 99.90 Average: all 0.00 0.01 0.02 0.00 0.00 99.97 # memory [root@dlp ~]# sar -r Linux 4.18.0-305.3.1.el8_4.x86_64 (dlp.srv.world) 08/05/2021 _x86_64_ (2 CPU) 11:37:25 LINUX RESTART (2 CPU) 11:40:06 AM kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 11:50:15 AM 3246140 3409560 580192 15.16 3164 356392 275828 3.96 217540 229480 0 12:00:15 PM 3246772 3410204 579560 15.15 3164 356396 277080 3.97 217708 228896 0 12:10:15 PM 3246312 3409868 580020 15.16 3164 356520 273924 3.93 217984 229028 0 12:20:15 PM 3246308 3409872 580024 15.16 3164 356520 273924 3.93 232472 214656 0 Average: 3246280 3409959 580052 15.16 3164 356638 274199 3.93 228905 218143 0 # I/O [root@dlp ~]# sar -b Linux 4.18.0-305.3.1.el8_4.x86_64 (dlp.srv.world) 08/05/2021 _x86_64_ (2 CPU) 11:37:25 LINUX RESTART (2 CPU) 11:40:06 AM tps rtps wtps bread/s bwrtn/s 11:50:15 AM 0.07 0.00 0.07 0.00 0.80 12:00:15 PM 0.12 0.00 0.12 0.00 1.49 12:10:15 PM 0.12 0.01 0.11 0.36 1.59 12:20:15 PM 0.21 0.00 0.21 0.00 7.73 Average: 0.11 0.00 0.11 0.08 1.82 # network [root@dlp ~]# sar -n DEV Linux 4.18.0-305.3.1.el8_4.x86_64 (dlp.srv.world) 08/05/2021 _x86_64_ (2 CPU) 11:37:25 LINUX RESTART (2 CPU) 11:40:06 AM IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 11:50:15 AM lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:50:15 AM enp1s0 0.63 0.05 0.05 0.00 0.00 0.00 0.00 0.00 12:00:15 PM lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 12:00:15 PM enp1s0 0.60 0.04 0.05 0.00 0.00 0.00 0.00 0.00 12:10:15 PM lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 12:10:15 PM enp1s0 0.62 0.03 0.05 0.00 0.00 0.00 0.00 0.00 12:20:15 PM lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 12:20:15 PM enp1s0 0.71 0.16 0.13 0.02 0.00 0.00 0.00 0.00 12:30:15 PM lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 12:30:15 PM enp1s0 0.61 0.01 0.05 0.00 0.00 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: enp1s0 0.65 0.03 0.06 0.00 0.00 0.00 0.00 0.00 # load avarage [root@dlp ~]# sar -q Linux 4.18.0-305.3.1.el8_4.x86_64 (dlp.srv.world) 08/05/2021 _x86_64_ (2 CPU) 11:37:25 LINUX RESTART (2 CPU) 11:40:06 AM runq-sz plist-sz ldavg-1 ldavg-5 ldavg-15 blocked 11:50:15 AM 5 141 0.00 0.00 0.00 0 12:00:15 PM 1 141 0.00 0.00 0.00 0 12:10:15 PM 0 141 0.00 0.00 0.00 0 Average: 0 141 0.01 0.00 0.00 0 |
| [2] | Display past statics with specifying a log file. Log files are stored under the [/var/log/sa] directory by default. |
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# display all statics by a log file [root@dlp ~]# sar -A -f /var/log/sa/sa05 Linux 4.18.0-305.3.1.el8_4.x86_64 (dlp.srv.world) 08/05/2021 _x86_64_ (2 CPU) 11:37:25 LINUX RESTART (2 CPU) 11:40:06 AM CPU %usr %nice %sys %iowait %steal %irq %soft %guest %gnice %idle 11:50:15 AM all 0.01 0.00 0.00 0.00 0.00 0.01 0.00 0.00 0.00 99.98 11:50:15 AM 0 0.01 0.00 0.00 0.00 0.00 0.01 0.00 0.00 0.00 99.98 ..... ..... 01:30:15 PM CPU total/s dropd/s squeezd/s rx_rps/s flw_lim/s 01:40:15 PM all 0.73 0.00 0.00 0.00 0.00 01:40:15 PM 0 0.00 0.00 0.00 0.00 0.00 01:40:15 PM 1 0.73 0.00 0.00 0.00 0.00 Average: all 0.65 0.00 0.00 0.00 0.00 Average: 0 0.00 0.00 0.00 0.00 0.00 Average: 1 0.65 0.00 0.00 0.00 0.00 # display the load average with specifying times by a log file [root@dlp ~]# sar -q -s 22:00:00 -e 00:00:00 -f /var/log/sa/sa16 Linux 4.18.0-277.el8.x86_64 (dlp.srv.world) 03/16/2021 _x86_64_ (4 CPU) 22:49:41 LINUX RESTART (4 CPU) 10:50:00 PM runq-sz plist-sz ldavg-1 ldavg-5 ldavg-15 blocked 10:55:00 PM 1 166 0.00 0.04 0.02 0 11:00:00 PM 0 169 0.00 0.01 0.00 0 11:05:00 PM 0 170 0.00 0.00 0.00 0 11:10:00 PM 0 167 0.00 0.00 0.00 0 Average: 0 168 0.00 0.01 0.01 0 |
| [3] | Display current statics. |
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# display CPU utilization per a second 3 times [root@dlp ~]# sar -u 1 3 Linux 4.18.0-305.3.1.el8_4.x86_64 (dlp.srv.world) 08/05/2021 _x86_64_ (2 CPU) 01:47:24 PM CPU %user %nice %system %iowait %steal %idle 01:47:25 PM all 0.00 0.00 0.00 0.00 0.00 100.00 01:47:26 PM all 0.00 0.00 0.50 0.00 0.00 99.50 01:47:27 PM all 0.00 0.00 0.00 0.00 0.00 100.00 Average: all 0.00 0.00 0.17 0.00 0.00 99.83 # display I/O and network per 2 seconds 5 times [root@dlp ~]# sar -b -n DEV 2 5 Linux 4.18.0-305.3.1.el8_4.x86_64 (dlp.srv.world) 08/05/2021 _x86_64_ (2 CPU) 01:47:38 PM tps rtps wtps bread/s bwrtn/s 01:47:40 PM 0.00 0.00 0.00 0.00 0.00 01:47:38 PM IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 01:47:40 PM lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 01:47:40 PM enp1s0 0.50 0.00 0.03 0.00 0.00 0.00 0.00 0.00 01:47:40 PM tps rtps wtps bread/s bwrtn/s 01:47:42 PM 0.00 0.00 0.00 0.00 0.00 01:47:40 PM IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 01:47:42 PM lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 01:47:42 PM enp1s0 0.50 0.00 0.03 0.00 0.00 0.00 0.00 0.00 ..... ..... Average: tps rtps wtps bread/s bwrtn/s Average: 0.00 0.00 0.00 0.00 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 statics with them like follows. |
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# display I/O with Mega bytes per 2 seconds [root@dlp ~]# iostat -mx -d 2 Linux 4.18.0-305.3.1.el8_4.x86_64 (dlp.srv.world) 08/05/2021 _x86_64_ (2 CPU) Device r/s w/s rMB/s wMB/s rrqm/s wrqm/s %rrqm %wrqm r_await w_await aqu-sz rareq-sz wareq-sz svctm %util vda 1.89 0.31 0.04 0.01 0.00 0.09 0.13 21.29 0.14 6.79 0.00 21.62 35.42 1.38 0.30 dm-0 1.83 0.40 0.03 0.01 0.00 0.00 0.00 0.00 0.14 5.51 0.00 19.48 28.54 1.36 0.30 dm-1 0.01 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.16 0.00 0.00 22.65 0.00 0.14 0.00 Device r/s w/s rMB/s wMB/s rrqm/s wrqm/s %rrqm %wrqm r_await w_await aqu-sz rareq-sz wareq-sz svctm %util 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 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 dm-1 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 4.18.0-305.3.1.el8_4.x86_64 (dlp.srv.world) 08/05/2021 _x86_64_ (2 CPU) 01:48:57 PM CPU %usr %nice %sys %iowait %irq %soft %steal %guest %gnice %idle 01:48:59 PM all 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 100.00 01:48:59 PM 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 100.00 01:48:59 PM 1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 100.00 01:48:59 PM CPU %usr %nice %sys %iowait %irq %soft %steal %guest %gnice %idle 01:49:01 PM all 0.25 0.00 0.00 0.00 0.25 0.00 0.00 0.00 0.00 99.50 01:49:01 PM 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 100.00 01:49:01 PM 1 0.50 0.00 0.00 0.00 0.50 0.00 0.00 0.00 0.00 99.00 01:49:01 PM CPU %usr %nice %sys %iowait %irq %soft %steal %guest %gnice %idle 01:49:03 PM all 0.00 0.00 0.00 0.00 0.25 0.00 0.00 0.00 0.00 99.75 01:49:03 PM 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 100.00 01:49:03 PM 1 0.00 0.00 0.00 0.00 0.50 0.00 0.00 0.00 0.00 99.50 Average: CPU %usr %nice %sys %iowait %irq %soft %steal %guest %gnice %idle Average: all 0.08 0.00 0.00 0.00 0.17 0.00 0.00 0.00 0.00 99.75 Average: 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 100.00 Average: 1 0.17 0.00 0.00 0.00 0.33 0.00 0.00 0.00 0.00 99.50 # display memory utilization of specific process per a second 3 times [root@dlp ~]# pidstat -r -p 854 1 3 Linux 4.18.0-305.3.1.el8_4.x86_64 (dlp.srv.world) 08/05/2021 _x86_64_ (2 CPU) 01:50:01 PM UID PID minflt/s majflt/s VSZ RSS %MEM Command 01:50:02 PM 0 854 0.00 0.00 294504 40468 1.06 firewalld 01:50:03 PM 0 854 0.00 0.00 294504 40468 1.06 firewalld 01:50:04 PM 0 854 0.00 0.00 294504 40468 1.06 firewalld Average: 0 854 0.00 0.00 294504 40468 1.06 firewalld # display CIFS statics with Mega bytes per a 1 second 3 times [root@dlp ~]# cifsiostat -m 1 3 Linux 4.18.0-305.3.1.el8_4.x86_64 (dlp.srv.world) 08/05/2021 _x86_64_ (2 CPU) Filesystem rMB/s wMB/s rops/s wops/s fo/s fc/s fd/s \\smb.srv.world\Share 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Filesystem rMB/s wMB/s rops/s wops/s fo/s fc/s fd/s \\smb.srv.world\Share 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Filesystem rMB/s wMB/s rops/s wops/s fo/s fc/s fd/s \\smb.srv.world\Share 0.00 0.00 0.00 0.00 0.00 0.00 0.00 |
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