Re: bw_tcp & bw_unix throughput loss kernels >= 2.3.99-pre7

[David S. Miller]

   Date: Sun, 25 Jun 2000 14:22:59 +0200 (CEST)
   From: Mike Galbraith <[e-mail]>

   Noting a drop in both bw_unix and bw_tcp lmbench throughput numbers
   (bw_unix: 130->57 MB/sec bw_tcp: 94->46 MB/sec) on my box while testing
   2.4.0-test2, I did a binary search.. 2.3.99-pre7 is the switch point.
   Box is 128mb PIII/500.. config info attached.

It's because SLAB poisoning was enabled in the kernel memory allocator
to catch bugs.

Later,
David S. Miller
[e-mail]