On Thu, Jan 03, 2019 at 11:17:03PM +0530, Kaushal Shriyan wrote:
> I am running ClamAV process which is invoked by Cron scheduler around 3:00
> AM ( Midnight) on remote server running CentOS Linux release 7.6.1810
> (Core). Is there a way to measure what was the system resources
> consumptions like CPU, Network, I/O, Memory and Computing load is
> being used and is it possible to find out how much time it took to complete
> the scan?
The easiest thing I can think of would be to prepend the command in
the crontab with /usr/bin/time (or '/usr/bin/time -v' to get the
output to be more verbose).
You'll get something like this (example using 'dd'):
$ /usr/bin/time -v dd if=/dev/urandom of=/dev/null count=500 bs=1M
500+0 records in
500+0 records out
524288000 bytes (524 MB, 500 MiB) copied, 2.19242 s, 239 MB/s
Command being timed: "dd if=/dev/urandom of=/dev/null count=500 bs=1M"
User time (seconds): 0.00
System time (seconds): 2.19
Percent of CPU this job got: 99%
Elapsed (wall clock) time (h:mm:ss or m:ss): 0:02.19
Average shared text size (kbytes): 0
Average unshared data size (kbytes): 0
Average stack size (kbytes): 0
Average total size (kbytes): 0
Maximum resident set size (kbytes): 3140
Average resident set size (kbytes): 0
Major (requiring I/O) page faults: 0
Minor (reclaiming a frame) page faults: 342
Voluntary context switches: 1
Involuntary context switches: 24
Swaps: 0
File system inputs: 0
File system outputs: 0
Socket messages sent: 0
Socket messages received: 0
Signals delivered: 0
Page size (bytes): 4096
Exit status: 0
--
Jonathan Billings <billings@xxxxxxxxxx>
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