SysStat : How to use2019/11/21 |
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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 4.18.0-80.7.1.el8_0.x86_64 (dlp.srv.world) 11/21/2019 _x86_64_ (4 CPU) ..... ..... 03:20:00 AM CPU %user %nice %system %iowait %steal %idle 03:25:00 AM all 0.00 0.00 0.08 0.00 0.00 99.91 03:30:00 AM all 0.00 0.00 0.02 0.00 0.00 99.98 03:35:00 AM all 0.00 0.00 0.02 0.00 0.00 99.97 Average: all 0.00 0.00 0.04 0.00 0.00 99.95 # memory [root@dlp ~]# sar -r Linux 4.18.0-80.7.1.el8_0.x86_64 (dlp.srv.world) 11/21/2019 _x86_64_ (4 CPU) ..... ..... 03:20:00 AM kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 03:25:00 AM 7587120 7565308 412836 5.16 3268 193008 352712 3.16 133480 136796 0 03:30:00 AM 7586944 7565132 413012 5.16 3268 193008 359308 3.22 133452 136796 0 03:35:00 AM 7587132 7565324 412824 5.16 3268 193012 363404 3.26 133696 136564 0 Average: 7587065 7565255 412891 5.16 3268 193009 358475 3.22 133543 136719 0 # I/O [root@dlp ~]# sar -b Linux 4.18.0-80.7.1.el8_0.x86_64 (dlp.srv.world) 11/21/2019 _x86_64_ (4 CPU) ..... ..... 03:20:00 AM tps rtps wtps bread/s bwrtn/s 03:25:00 AM 0.14 0.01 0.13 0.24 1.14 03:30:00 AM 0.07 0.00 0.07 0.00 0.51 03:35:00 AM 0.10 0.00 0.10 0.00 1.03 Average: 0.10 0.00 0.10 0.08 0.89 # network [root@dlp ~]# sar -n DEV Linux 4.18.0-80.7.1.el8_0.x86_64 (dlp.srv.world) 11/21/2019 _x86_64_ (4 CPU) ..... ..... 03:20:00 AM IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 03:25:00 AM enp1s0 0.55 0.05 0.03 0.00 0.00 0.00 0.00 0.00 03:25:00 AM lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:30:00 AM enp1s0 0.52 0.02 0.03 0.00 0.00 0.00 0.00 0.00 03:30:00 AM lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:35:00 AM enp1s0 0.52 0.02 0.03 0.00 0.00 0.00 0.00 0.00 03:35:00 AM lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: enp1s0 0.53 0.03 0.03 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 # load avarage [root@dlp ~]# sar -q Linux 4.18.0-80.7.1.el8_0.x86_64 (dlp.srv.world) 11/21/2019 _x86_64_ (4 CPU) ..... ..... 03:20:00 AM runq-sz plist-sz ldavg-1 ldavg-5 ldavg-15 blocked 03:25:00 AM 1 152 0.00 0.00 0.00 0 03:30:00 AM 1 151 0.00 0.00 0.00 0 03:35:00 AM 1 152 0.00 0.00 0.00 0 03:40:00 AM 1 150 0.00 0.00 0.00 0 Average: 1 151 0.00 0.00 0.00 0 |
| [2] | Display past statics with specifying a log file. Log files are stored under the [/var/log/sa] directory. |
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# display all statics by a log file [root@dlp ~]# sar -A -f /var/log/sa/sa21 Linux 4.18.0-80.7.1.el8_0.x86_64 (dlp.srv.world) 11/21/2019 _x86_64_ (4 CPU) ..... ..... 03:20:00 AM CPU total/s dropd/s squeezd/s rx_rps/s flw_lim/s 03:25:00 AM all 0.55 0.00 0.00 0.00 0.00 03:25:00 AM 2 0.55 0.00 0.00 0.00 0.00 03:30:00 AM all 0.52 0.00 0.00 0.00 0.00 03:30:00 AM 2 0.52 0.00 0.00 0.00 0.00 03:35:00 AM all 0.52 0.00 0.00 0.00 0.00 03:35:00 AM 2 0.52 0.00 0.00 0.00 0.00 03:40:00 AM all 0.54 0.00 0.00 0.00 0.00 03:40:00 AM 2 0.54 0.00 0.00 0.00 0.00 Average: all 0.53 0.00 0.00 0.00 0.00 Average: 2 0.53 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/sa/sa21 Linux 4.18.0-80.7.1.el8_0.x86_64 (dlp.srv.world) 11/21/2019 _x86_64_ (4 CPU) ..... ..... 03:20:00 AM runq-sz plist-sz ldavg-1 ldavg-5 ldavg-15 blocked 03:25:00 AM 1 152 0.00 0.00 0.00 0 03:30:00 AM 1 151 0.00 0.00 0.00 0 03:35:00 AM 1 152 0.00 0.00 0.00 0 03:40:00 AM 1 150 0.00 0.00 0.00 0 Average: 1 151 0.00 0.00 0.00 0 |
| [3] | Display current statics. |
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# display CPU utilization per a second 3 times [root@dlp ~]# sar -u 1 3 Linux 4.18.0-80.7.1.el8_0.x86_64 (dlp.srv.world) 11/21/2019 _x86_64_ (4 CPU) 03:44:38 AM CPU %user %nice %system %iowait %steal %idle 03:44:39 AM all 0.00 0.00 0.00 0.00 0.00 100.00 03:44:40 AM all 0.00 0.00 0.50 0.00 0.00 99.50 03:44:41 AM 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 4.18.0-80.7.1.el8_0.x86_64 (dlp.srv.world) 11/21/2019 _x86_64_ (4 CPU) 03:45:08 AM tps rtps wtps bread/s bwrtn/s 03:45:10 AM 0.00 0.00 0.00 0.00 0.00 03:45:08 AM IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 03:45:10 AM enp1s0 0.50 0.00 0.03 0.00 0.00 0.00 0.00 0.00 03:45:10 AM lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 ..... ..... 03:45:16 AM tps rtps wtps bread/s bwrtn/s 03:45:18 AM 0.00 0.00 0.00 0.00 0.00 03:45:16 AM IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 03:45:18 AM enp1s0 0.50 0.00 0.03 0.00 0.00 0.00 0.00 0.00 03:45:18 AM lo 0.00 0.00 0.00 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: enp1s0 0.50 0.00 0.03 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 |
| [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 4.18.0-80.7.1.el8_0.x86_64 (dlp.srv.world) 11/21/2019 _x86_64_ (4 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 1.83 1.05 0.07 0.01 0.01 0.03 0.58 2.87 0.15 1.30 0.00 41.70 11.78 0.27 0.08 dm-0 1.70 1.08 0.06 0.01 0.00 0.00 0.00 0.00 0.14 1.23 0.00 35.86 11.55 0.27 0.07 dm-1 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.07 0.00 0.00 22.65 0.00 0.15 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 0.50 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 8.00 0.00 1.00 0.05 dm-0 0.50 0.00 0.00 0.00 0.00 0.00 0.00 0.00 1.00 0.00 0.00 8.00 0.00 1.00 0.05 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 4.18.0-80.7.1.el8_0.x86_64 (dlp.srv.world) 11/21/2019 _x86_64_ (4 CPU) 03:46:57 AM CPU %usr %nice %sys %iowait %irq %soft %steal %guest %gnice %idle 03:46:59 AM all 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 100.00 03:46:59 AM 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 100.00 03:46:59 AM 1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 100.00 03:46:59 AM 2 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 100.00 03:46:59 AM 3 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 100.00 ..... ..... 03:47:01 AM CPU %usr %nice %sys %iowait %irq %soft %steal %guest %gnice %idle 03:47:03 AM all 0.00 0.00 0.12 0.00 0.12 0.00 0.00 0.00 0.00 99.75 03:47:03 AM 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 100.00 03:47:03 AM 1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 100.00 03:47:03 AM 2 0.00 0.00 0.50 0.00 0.00 0.00 0.00 0.00 0.00 99.50 03:47:03 AM 3 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 0.00 0.00 0.08 0.00 0.12 0.00 0.00 0.00 0.00 99.79 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 0.00 0.00 0.00 0.00 0.00 0.00 0.00 100.00 Average: 2 0.00 0.00 0.33 0.00 0.00 0.00 0.00 0.00 0.00 99.67 Average: 3 0.00 0.00 0.00 0.00 0.50 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 839 1 3 Linux 4.18.0-80.7.1.el8_0.x86_64 (dlp.srv.world) 11/21/2019 _x86_64_ (4 CPU) 03:48:47 AM UID PID minflt/s majflt/s VSZ RSS %MEM Command 03:48:48 AM 0 839 0.00 0.00 92248 6960 0.09 sshd 03:48:49 AM 0 839 0.00 0.00 92248 6960 0.09 sshd 03:48:50 AM 0 839 0.00 0.00 92248 6960 0.09 sshd Average: 0 839 0.00 0.00 92248 6960 0.09 sshd # display CIFS statics with Mega bytes per a 1 second 3 times [root@dlp ~]# cifsiostat -m 1 3 Linux 4.18.0-80.7.1.el8_0.x86_64 (dlp.srv.world) 11/21/2019 _x86_64_ (4 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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