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Re: [ANNOUNCEMENT] New package: brltty 3.8


On 6/7/07, Samuel Thibault wrote:
Lev Bishop, le Thu 07 Jun 2007 13:41:44 -0400, a écrit :
> ...around 80MByte/sec, which maybe isn't as fast as it could be using
> native functionality, but surely brltty doesn't need *that* much
> bandwidth for transferring text?

It doesn't need bandwidth, it needs latency.

Latency is... bash-3.2$ ./socat TCP-LISTEN:5001 PIPE & exec 99<>/dev/tcp/127.0.0.1/5001 ; time for (( a=0; a<1000; a++ )); do echo $a >&99; read <&99; done; exec 99>&- [1] 4492

real    0m1.959s
user    0m0.062s
sys     0m0.172s
bash-3.2$
[1]+  Done                    ./socat TCP-LISTEN:5001 PIPE

...about 2ms round-trip. How is this a problem?

Lev

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