Kernel Cache

ronlau9 · 02-08-2010, 06:53 AM

Do linux make use of a kernel cache ?
And if so is it use full to delete it sometimes ?
And if it is deleted does it make a new one automatic ?

Thanks in advance

unSpawn · 02-08-2010, 10:37 AM

Quote:

Originally Posted by ronlau9

Do like linux make use of a kernel cache ?

Yes. See for instance 'slabtop' which displays kernel cache information.

Quote:

Originally Posted by ronlau9

And if so is it use full to delete it sometimes ?

No, it flushes them.

If there's a particular reason for asking please elaborate?

ronlau9 · 02-09-2010, 01:08 AM

Quote:

Originally Posted by unSpawn

Yes. See for instance 'slabtop' which displays kernel cache information.

No, it flushes them.

If there's a particular reason for asking please elaborate?

As you see in my profile I use OSX too.
And in OSX when you already use it for a long time it is use full to get rid of all you're cache.
And you can do it in several ways
But as there are utilities to do so , it is quit easy.
You can buy it ore download the freeware version.
And of course you can deleted them from the command line .

unSpawn · 02-09-2010, 02:26 AM

I don't know XNU / Mach VMM but one of the most misunderstood characteristics of a well-working Virtual Memory Manager (VMM) is that it seems to occupy all of a machines memory. If you're interested in learning more about the Linux VMM then either see Understanding Virtual Memory (Red Hat magazine '04), Understanding the Linux Virtual Memory Manager (on-line book) or the dead tree "Understanding the Linux Kernel"?

syg00 · 02-09-2010, 07:13 AM

I suspect this is a dialog at cross purposes. The "kernel caching" in OSX is (I believe) closer to Ubuntu boot profiling.
Not related to general caching philosophies as we know them.