Questions tagged [sar]
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58 questions
1 vote
1 answer
69 views
Obtain memory values in SAR the same way as in FREE
I'd like to know if I can get memory in sar the same way I get it from free. Currently free shows me a memory usage of 47.06% (16956/36027)*100 [used/total x 100]. Whereas sar is showing me a usage of ...
- 111
1 vote
1 answer
198 views
Is there a reason why sar would show different monitoring statistics on memory than other monitoring tools like dynatrace?
I'm currently investigating why I didn't get notified about a high memory utilization on one RHEL server from dynatrace. When checking the graphs of memory usage, both sar and dynatrace show different ...
- 3,268
0 votes
2 answers
238 views
convert MAJ:MIN – device numbers to real disks names
from sar command on saX file we can get the disks utilization as the follwing sar -d -f /var/log/sa/sa18 | grep Average Average: dev8-0 1.24 0.00 150.06 121.40 0.04 30....
- 14k
0 votes
1 answer
252 views
SAR / syssstat issues
I am having issues with SAR not populating daily logs from the 10 minute interval runs it is supposed to be doing. I have the same configuration on multiple servers, and they are running sar just fine....
0 votes
1 answer
1k views
Sysstat Time Options and Command Differences
I would like to track total CPU and memory use on an Ubuntu 20.04 machine. For that purpose, I am about to install the sysstat library. I read the manuals of and posts on sar and related functions, ...
- 71
1 vote
0 answers
761 views
Sar network monitoring seems inaccurate?
I've been monitoring my system using sar. I recently came across some interesting data: These are the stats for one of my Calico network devices... it seems to spike between ~0.2 Gbps and 20 Gpbs. The ...
- 576
1 vote
1 answer
1k views
sysstat sar only collects cpu usage
I'm running into a problem when using sar to collect live system statistics. When I run a sar command such as the following, I get the right output: $ sar -r 1 -o /tmp/memory_usage Linux 4.15.0-70-...
- 183
1 vote
1 answer
254 views
What is the relation between %UTIL VS %WA in sar?
What is the relation between %UTIL VS %WA in sar ? %util Percentage of CPU time during which I/O requests were issued to the device (bandwidth utilization for the device). Device saturation occurs ...
