[eepro100] Performance prob. (again)

Arthur Rinkel arthur@cal040041.student.utwente.nl
Tue, 27 Feb 2001 21:52:26 +0100 (CET)

On Mon, 26 Feb 2001, Nate Amsden wrote:

> > The (Rx) speed doesn't seem to exceed 2MB/s or so; the NIC is installed in
> > a Pentium system running 133MHz. A TCP/IP stack "test" with a prg called
> > ttcp resulted in a (top) speed of 5,8MB/s, so I'm guessing the CPU is
> > capable of doing 4-5MB/s of network throughput. Or is this incorrect?
> what are you doing that shows only 2MB/s ? if it's doing a file transfer
> i'd be its the HDD that is the bottleneck. what are the rest of the specs
> on that system? ram? hd? etc..
Asus P/I-P55TP4XE with 256kB cache, 40MB RAM.
During testing the system is in runlevel 3 (Linux 2.2.13) and I'm
downloading a 23MB file from a (very) near site. Tried big files from
other near sites too.

> try running bonnie on the system or something else to see how fast
> your disk can write(bonnie is a hdd benchmark). 2MB/s i would consider
2x Seagate Barracuda 4GB (SCSI-UWD) in RAID0 (chunk size = 4kB,
block size = 4kB), tested in Single User mode with Bonnie++ 1.0.

     ------Sequential Output------ --Sequential Input- --Random-
     -Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--
  MB K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP  /sec %CP
 100  1946  98 13227  87  5010  72  2103  99 16053  90  39.8   2

But I don't think the disks are the bottleneck...maybe the little amount
of RAM?

Grtz, Arthur