[Iometer-devel] Does IOMeter synchronize I/O threads (workers)?

[Liang Y. <mul...@ho...>]

Hello,

I just have a question about the synchronization amongst those I/O threads 
in the same IOMeter manager. Does IOMeter try to synchronize all those I/O 
threads before they issue the I/O to the disk? Suppose I have used 64 I/O 
threads to push 64 outstanding I/Os to the same target. Are all those thread 
I/Os initiated at the exactly same time? If not, does the skewed I/O impact 
the performance?

Could anyone shed some lights here?

Thanks,

Liang