Re: Re: [PATCH -tip v7 24/26] kprobes: Enlarge hash table to 4096 entries

2014-03-03 Thread Andi Kleen
> So, we can see the hash table larger than 2^9 (512 entries, > which consumes 4KB) has no performance improvement. > Would you think 4kB is still big for kprobes? :) 4KB should be fine. Thanks for evaluating. -Andi -- a...@linux.intel.com -- Speaking for myself only. -- To unsubscribe from thi

Re: Re: [PATCH -tip v7 24/26] kprobes: Enlarge hash table to 4096 entries

2014-03-03 Thread Masami Hiramatsu
(2014/02/28 7:22), Masami Hiramatsu wrote: > (2014/02/28 6:45), Andi Kleen wrote: >> Masami Hiramatsu writes: >> >>> Currently, since the kprobes expects to be used >>> with less than 100 probe points, its hash table >>> just has 64 entries. This is too little to handle >>> several thousands of pr