off topic but possibly interesting to someone...

2006-03-01 Thread poncenby smythe

List,

File transfer between my iBook G4 and OpenBSD box (3.8 GENERIC#138  
i386) over SSH seems really slow.
I have made sure the iBook en0 interface is 100baseTX full-duplex and  
the same with the rl0 interface on the OpenBSD box.
When transferring files with scp or rsync (over ssh) top reports sshd  
at 80-85% and transfer speed is limited to anywhere between 70-80k/sec.

The OpenBSD box specs are as follows:

cpu0: VIA Samuel 2 (CentaurHauls 686-class) 533 MHz
cpu0: FPU,DE,TSC,MSR,MTRR,PGE,MMX
real mem  = 158900224 (155176K)
avail mem = 138125312 (134888K)
using 1965 buffers containing 8048640 bytes (7860K) of memory
rl0 at pci0 dev 20 function 0 Realtek 8139 rev 0x10: irq 11 address  
x0:x0:xc:x9:x0:xf


so it isn't the fastest box in the world but I'd expect it to cope  
better than it is.
I have tried FTP and speed is constantly around 500k/sec, which I can  
live with but realise it should be much faster.
FIrst thoughts is possible bottleneck when waiting for more entropy.   
If this is the case would adding memory make a huge difference?

or is the CPU the bottleneck?

any ideas out there?
i'll continue googling in the meantime

thanks guys,

poncenby



Re: off topic but possibly interesting to someone...

2006-03-01 Thread Spruell, Darren-Perot
From: [EMAIL PROTECTED] 
 cpu0: VIA Samuel 2 (CentaurHauls 686-class) 533 MHz
 cpu0: FPU,DE,TSC,MSR,MTRR,PGE,MMX
 real mem  = 158900224 (155176K)
 avail mem = 138125312 (134888K)
 using 1965 buffers containing 8048640 bytes (7860K) of memory
 rl0 at pci0 dev 20 function 0 Realtek 8139 rev 0x10: irq 11 
 address  
 x0:x0:xc:x9:x0:xf
 
 so it isn't the fastest box in the world but I'd expect it to cope  
 better than it is.
 I have tried FTP and speed is constantly around 500k/sec, 
 which I can  
 live with but realise it should be much faster.
 FIrst thoughts is possible bottleneck when waiting for more 
 entropy.   
 If this is the case would adding memory make a huge difference?
 or is the CPU the bottleneck?

What raw transfer speeds do you see with an application such as iperf or
ttcp?

DS