Hi Pierre,
On Tue, 2005-12-27 at 12:25 +0100, Pierre CANAL wrote:
Hello,
I use udpcast for test. I make and image of /home with or without compression perfectly. But when I want to send image , if there is no compression it's Ok (some timeout notAnswered[0]...but finally it's ok) When I use lzop or gzip, I get an error sometimes on the sender, sometimes on the sender : I have a lot of Timeout notAnswered=[0} notReady=[0] nrAns=0 nrReady=0 nrPart=1 avg=8121 and so on...
Dropping client because of timeout lzop <stdin> checksum error... or invalid operand PREEMPT and crash server ! process udp-sender Stack ... Call Trace ... or Gzip stop Bad EIPvalue SIGSEGV .... And strange thing .. With no compression the speed is 80Mbps with lzop 20 Mbps with gzip 7Mbps
i had the same problem and if i used a "server" to save the images and use udp-sender with lzop or gzip, i got allways a timeout and the copy fails. The performace with gzip was worst and with lzop much better, too.
My main problem is, that it is actually impossibile, to save images on a server and copy them on a machine. I am still searching for a solution. :-(
My CPU is an Athlon 2400+ (not so bad), I use kernel 2.6.8 on a Debian Sarge.
I used a Pentium IV 2,4 with 1 GB RAM in the server and fast S-ATA drives.
Regards Thomas Kuehling