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--- sar_commands [2015/04/25 09:19] – created luke7858
+++ sar_commands [2024/05/23 07:26] (current) – external edit 127.0.0.1
@@ Line 1: / Line 1: @@
 ==== Common Sar Commands ====
-Show **CPU statistics** 3 times with 1 second interval:
 <sxh bash>
-sar 1 3
+sar -u
+sar -q
+sar -b
+sar -B
+sar -d (device)
+sar -n DEV
+sar -n SOCK
 </sxh>
 \\
-CPU usage of **all CPUs** (focus on the last field “%idle” to see the cpu load):
+\\
+\\
+Show all statistics for current day:
+<sxh bash>
+sar -<option>
+</sxh>
+Show statistics 3 times with 1 second interval
+<sxh bash>
+sar -<option> 1 3
+</sxh>
+---------------------------------
+Show **CPU statistics** 3 times with 1 second interval, (focus on the last field “%idle” to see the cpu load):
+<sxh bash>
+sar 1 3
+</sxh>
+=== CPU usage of ALL CPUs ===
 <sxh bash>
 sar -u 1 3
 </sxh>
-\\
+=== Load average ===
-Show **CPU** usage for the **current day**
 <sxh bash>
-sar -u
+sar -q
 </sxh>
-\\
+===Swap Space===
-**Swap Space** show for **current day**
 <sxh bash>
 sar -S
 </sxh>
-Show swap space for 1 second interval 3 times:
+\\
+==== Viewing specific time and date ====
+Select a specific time during the day:
 <sxh bash>
-sar -S 1 3
+sar -<option> -s 10:30:00
 </sxh>
-\\
-== Viewing specific time and date ==
 <sxh bash>
 sar -q -f /var/log/sa/sa23 -s 10:00:01
@@ Line 33: / Line 51: @@
 </sxh>
 \\
-=== Load average ===
+=== Finding every occurrence the load increased above the recommended amount ===
+Change the value 4 to the number of CPUs you have
 <sxh bash>
-sar -q
+sar -q | awk '$5 > 4'
+</sxh>
+\\
+=== Summary of logs ===
+== RAM ==
+<sxh bash>
+for i in $(ls -tr /var/log/sa/sa[0-9][0-9]); do echo $(ls -l $i); sar -r -f $i | awk '$4 > 98.8'; done | awk '!/Average|Linux/'
+</sxh>
+== CPU ==
+<sxh bash>
+for i in $(ls -tr /var/log/sa/sa[0-9][0-9]); do echo $(ls -l $i); sar -u -f $i | awk '$8 > 20'; done | awk '!/Average|Linux/'
+</sxh>
+== load ==
+<sxh bash>
+load=$(grep -ic 'model name' /proc/cpuinfo ); for i in $(ls -1tr /var/log/sa/sa[0-3]*| grep -v '.bz2'); do echo "$(stat --printf='%.16y...' $i)"; sar -q -f $i | awk ' $6 > '"$load"' {print $0}' | grep -v 'Average\|x86'; echo ''; done
+</sxh>
+<sxh bash>
+for i in $(ls -tr /var/log/sa/sa[0-9][0-9]); do echo $(ls -l $i); sar -q -f $i | awk '$5 > 1'; done | awk '!/Average|Linux/'
+</sxh>
+== Block Device I/O Activities ==
+<sxh bash>
+for i in $( ls -tr /var/log/sa/sa[0-9][0-9]); do echo $(ls -l $i ); sar -p -d | awk '$11 > 80'; done | awk '!/Average|Linux/'
 </sxh>