Messages in this thread |  | | | Date | Wed, 27 Feb 2002 10:34:36 -0800 | | From | "Martin J. Bligh" <> | | Subject | Re: [Lse-tech] lockmeter results comparing 2.4.17, 2.5.3, and 2.5.5 |
| |
> 2.5.5: > > 8.6% 1.6us( 100ms) 30us( 86ms)( 9.4%) 783373441 91.4% 8.6% 0.00% *TOTAL*
Whilst it's great to see BKL contention going down, this:
0.16% 0.25% 0.7us( 100ms) 252us( 86ms)(0.02%) 6077746 99.8% 0.25% 0% inode_lock 0.03% 0.11% 0.6us( 55us) 2.1us( 9.9us)(0.00%) 1322338 99.9% 0.11% 0% __mark_inode_dirty+0x48 0.00% 0% 0.7us( 5.9us) 0us 391 100% 0% 0% get_new_inode+0x28 0.00% 0.22% 2.5us( 50us) 495us( 28ms)(0.00%) 50397 99.8% 0.22% 0% iget4+0x3c 0.03% 0.28% 0.6us( 26us) 30us( 58ms)(0.00%) 1322080 99.7% 0.28% 0% insert_inode_hash+0x44 0.04% 0.29% 0.5us( 39us) 332us( 86ms)(0.01%) 2059365 99.7% 0.29% 0% iput+0x68 0.03% 0.30% 0.7us( 57us) 422us( 77ms)(0.01%) 1323036 99.7% 0.30% 0% new_inode+0x1c 0.03% 8.3% 63ms( 100ms) 3.8us( 3.8us)(0.00%) 12 91.7% 8.3% 0% prune_icache+0x1c 0.00% 0% 1.0us( 5.2us) 0us 34 100% 0% 0% sync_unlocked_inodes+0x10 0.00% 0% 1.0us( 2.4us) 0us 93 100% 0% 0% sync_unlocked_inodes+0x110
looks a little distressing - the hold times on inode_lock by prune_icache look bad in terms of latency (contention is still low, but people are still waiting on it for a very long time). Is this a transient thing, or do people think this is going to be a problem?
Martin.
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
|  |