-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Eric Gaumer <[EMAIL PROTECTED]> writes:
> On Fri, 2004-10-22 at 00:37, Paul Johnson wrote: >> OK, this is probably the most obvious question ever, but I just can't >> find it in Google or Wikipedia. >> >> Just what the heck is the difference between buffer and cache in terms >> of memory usage? What is each catagory used for? > > Kernel buffer cache stores the most recently accessed blocks from a > block device. OK, no real surprise there, that's more or less what I thought was going on there. > Kernel cache stores cached kernel data structures. So say you create a > process, a new task_struct may be created. When that process is > destroyed, the kernel will cache that data structure so that it doesn't > have to keep allocating and destroying common data structures. This is > the purpose of the slab layer. Ah, there we go. That makes sense. So it's kind of like a buffer for system calls? -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.5 (GNU/Linux) iD8DBQFBecqQUzgNqloQMwcRAkuUAJ4mRkjALPkNehf/aePNzOjqd0SVQACgsnfd eTUAhCtXoSvFpvo2tq4oP44= =Ru3G -----END PGP SIGNATURE----- -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
