Eric Dumazet wrote:
We certainly can. But if you insist of using mmap sem at all, then we have a
problem.
rbtree would not reduce cacheline bouncing, so :
We could use a hashtable (allocated on demand) of size N, N depending on
NR_CPUS for example. each chain protected by a private spinlock. If N is well
chosen, we might reduce lock cacheline bouncing. (different threads fighting
on different private futexes would have a good chance to get different
cachelines in this hashtable)
See other mail. We already have a hash table ;)
--
SUSE Labs, Novell Inc.
Send instant messages to your online friends http://au.messenger.yahoo.com
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
