I'm currently reviewing our Commcell’s Infrastructure Load Report and I have noticed the following:
For the Linux MediaAgents, physical memory usage is around 15%, while virtual memory usage is approximately 70%.
For the Windows MediaAgents and the Commserve (also Windows), both physical and virtual memory usage is similar.
I'm wondering if this difference with the Linux MediaAgents indicates an underlying configuration issue or if it is simply the standard way Commvault operates in this environment.
Also, at what point should I consider the memory usage to be a critical performance issue?
Thanks!
Best answer by Mohammed Ramadan
hello @Sergio V
High virtual memory on Linux is not necessarily a problem memory usage becomes critical when physical memory reaches more 85%
If you need more details you can use the top command you will see something like this
VSZ (virtual memory) it also call (reserved memory) RSS (physical memory used) SHR (shared memory)
as you can see a lot of process has reserved memory that it hasn’t used (this normal btw in linux ) its called lazy allocation you can search for more information about it
on Windows it is normal for physical memory and virtual memory to look pretty similar windows is more careful about how it uses memory so the numbers usually match up more closely
in the end just wanna say welcome to the world of Linux dude 😄
Best Regards, Mohammed Ramadan Data Protection Engineer
High virtual memory on Linux is not necessarily a problem memory usage becomes critical when physical memory reaches more 85%
If you need more details you can use the top command you will see something like this
VSZ (virtual memory) it also call (reserved memory) RSS (physical memory used) SHR (shared memory)
as you can see a lot of process has reserved memory that it hasn’t used (this normal btw in linux ) its called lazy allocation you can search for more information about it
on Windows it is normal for physical memory and virtual memory to look pretty similar windows is more careful about how it uses memory so the numbers usually match up more closely
in the end just wanna say welcome to the world of Linux dude 😄
Best Regards, Mohammed Ramadan Data Protection Engineer
