Re: [Dump-devel] Multiple slaves stepping on each other

[Phillip S. <ps...@cf...>]

I have managed to come up with a test patch to have the slaves use 
SIGUSR1 to signal the next slave to start the read phase, and continue 
to use SIGUSR2 to start the write phase.  This has resulted in double 
the throughput in my initial test, taking the time it takes to dump ( to 
/dev/zero ) a 6.9/22gb fs with 386988 inodes from 6 minutes 15 seconds 
to 3 minutes 3 seconds.