Hi,
We have Powercli scripts on Linux (RHEL9) that connect to our vcenters and do a lot of things.
But we have seen that running the initial import-module for powercli takes 3-4 seconds and the connect-viserver takes another 3-4 seconds.
In total, it takes 7-9 seconds before the script starts doing useful work.
In comparison, we have old perl VMware SDK commands that take less than 0.5 seconds to start and connect to vcenter.
We see the same slowness on RHEL7. But logging into the Website is quick.
How can we speed up Powercli to be as fast as Perl SDK or at least faster than it is now?
Here is the code we are using to test the speed.
#!/usr/bin/env pwsh
write-host("Importing once");
measure-command {
Import-Module VMware.VimAutomation.Core
}
write-host("Done importing once");
write-host("Connecting once");
$credpath="~/.vmware/powercli-creds/cred.vlxctrp05.root@localos.xml"
$credential = import-clixml -path $credpath
measure-command {
$conn=connect-viserver -server vlxctrp05 -protocol https -credential $credential
}
write-host("Done connecting")
exit(0);
The resulting output is:
[root@vlxadmp23 sbin]# time ./vmlogin2.ps1
Importing once
Days : 0
Hours : 0
Minutes : 0
Seconds : 3
Milliseconds : 683
Ticks : 36837493
TotalDays : 4.26359872685185E-05
TotalHours : 0.00102326369444444
TotalMinutes : 0.0613958216666667
TotalSeconds : 3.6837493
TotalMilliseconds : 3683.7493
Done importing once
Connecting once
Days : 0
Hours : 0
Minutes : 0
Seconds : 4
Milliseconds : 707
Ticks : 47076601
TotalDays : 5.4486806712963E-05
TotalHours : 0.00130768336111111
TotalMinutes : 0.0784610016666667
TotalSeconds : 4.7076601
TotalMilliseconds : 4707.6601
Done connecting
real 0m9.822s
user 0m7.033s
sys 0m1.092s
