On 14/04/2019 16:51, Pete Biggs wrote: > >> >> Thanks for the email. I will be interested in command line interface >> tool/utility. Is there a way to find out the previous occurrence of >> resource utilization? For example, there was a high load on the Linux >> server which occurred three days back during the time of 3:00 AM to 4:00 AM >> meaning historical data. >> > > You need to look at system accounting. The command 'sa' reports on > accounting information and the command 'accton' turns on per process > accounting. It's not usually turned on by default (on busy systems the > accounting files can get large) and it's not retrospective. (So if it's > not turned on, any per-process logs are lost once the process > terminates.) > > P. > > > _______________________________________________ > CentOS mailing list > CentOS@xxxxxxxxxx > https://lists.centos.org/mailman/listinfo/centos > sa logs aren't usually too big, but the process logs can get pretty large. sa logs are usually processed overnight to sar reports which are a good starting point (see /var/log/sa). If you are running an audit trail that may give you additional information, as would monitoring tools such as Ganglia. -- J Martin Rushton MBCS
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