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glance with both buffer cache and file cache on 11.31

Emil Velez
Honored Contributor

glance with both buffer cache and file cache on 11.31

I have a system that is installed with 11.31 that shows both filecache and 1 mb in buffer cache in glance.

Any ideas why it is showing buffer cache of 1 mb or so. On all of the other 11.31 systems I have this is always set to 0.

thanks for any pointers
3 REPLIES
SoorajCleris
HPE Pro

Re: glance with both buffer cache and file cache on 11.31

Hi Emil,

In the mentioned document below page 11, its mentioned that
"Glance still shows a teensy bit for buffer cache but itâ s no longer a concern: instead
worry about the file cache."

http://h21007.www2.hp.com/portal/download/files/unprot/devresource/Docs/TechPapers/UXPerfCookBook.pdf

I don't if that gives you the answer!

Regards
Sooraj

"UNIX is basically a simple operating system, but you have to be a genius to understand the simplicity" - Dennis Ritchie
Emil Velez
Honored Contributor

Re: glance with both buffer cache and file cache on 11.31

Unfortunately the tuneables bufpages and nbuf are not available in 11.31 (at least with 1003) so I am wondering why buffer cache still shows up
Dennis Handly
Acclaimed Contributor

Re: glance with both buffer cache and file cache on 11.31

>tuneables bufpages and nbuf are not available in 11.31 so I am wondering why buffer cache still shows up

Because it is still used for some types of I/O. I think it was mentioned it is used for character I/O vs block.