On Thu, 17 Jan 2008, Patrick J. LoPresti wrote:
> I need to copy large (> 100GB) files between machines on a fast
> network. Both machines have reasonably fast disk subsystems, with
> read/write performance benchmarked at > 800 MB/sec. Using 10GigE cards
> and the usual tweaks to tcp_rmem etc.,
On Thu, 17 Jan 2008, Patrick J. LoPresti wrote:
I need to copy large ( 100GB) files between machines on a fast
network. Both machines have reasonably fast disk subsystems, with
read/write performance benchmarked at 800 MB/sec. Using 10GigE cards
and the usual tweaks to tcp_rmem etc., I am
On Jan 17 2008 12:53, Patrick J. LoPresti wrote:
>Using 10GigE cards and the usual tweaks to tcp_rmem etc., I am
>getting single-stream TCP throughput better than 600 MB/sec.
Hm, be aware not to hit the sequence wrap :)
>1) O_DIRECT read() + send()
>2) mmap() + madvise(WILLNEED) + send()
>3)
I need to copy large (> 100GB) files between machines on a fast
network. Both machines have reasonably fast disk subsystems, with
read/write performance benchmarked at > 800 MB/sec. Using 10GigE cards
and the usual tweaks to tcp_rmem etc., I am getting single-stream TCP
throughput better than 600
I need to copy large ( 100GB) files between machines on a fast
network. Both machines have reasonably fast disk subsystems, with
read/write performance benchmarked at 800 MB/sec. Using 10GigE cards
and the usual tweaks to tcp_rmem etc., I am getting single-stream TCP
throughput better than 600
On Jan 17 2008 12:53, Patrick J. LoPresti wrote:
Using 10GigE cards and the usual tweaks to tcp_rmem etc., I am
getting single-stream TCP throughput better than 600 MB/sec.
Hm, be aware not to hit the sequence wrap :)
1) O_DIRECT read() + send()
2) mmap() + madvise(WILLNEED) + send()
3)
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