AW: Re: read performance much slower than write

Hi peter!


I try to format the mesurement new and split it to Output and Input:
Version  1.03
------Sequential Output------ 
-Per Chr- --Block-- -Rewrite- 
Size K/sec %CP K/sec %CP K/sec %CP 
4G             72113  42 18330   9           

--Sequential Input- --Random-
-Per Chr- --Block-- --Seeks--
K/sec %CP K/sec %CP  /sec %CP
          11445   3 755.9   2

If I read this right it says that Block write is 72MB/s, rewrite is 18MB/s
and read Block is 11MB/s.
I cannot find out why the read performance is so slow compared to the write
performance.

I also tried the test on the servers local harddisk and it is about 90MB/s
write and 140MB/s read.

Christian