Re: Linux drivers for ICH5R (RAID1) and Promise PDC20378, Performance

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fyi, this is reading from an ide disk, writting to a software raid partition:

# time rsync --stats -v sever* /tmp
severn-i386-disc1.iso
severn-i386-disc2.iso
severn-i386-disc3.iso

Number of files: 3
Number of files transferred: 3
Total file size: 1959821312 bytes
Total transferred file size: 1959821312 bytes
Literal data: 1959821312 bytes
Matched data: 0 bytes
File list size: 72
Total bytes written: 1960060740
Total bytes read: 68

wrote 1960060740 bytes  read 68 bytes  13950610.73 bytes/sec
total size is 1959821312  speedup is 1.00

68.19user 80.37system 2:20.26elapsed 105%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (180major+308minor)pagefaults 0swaps
-----------------------------------
here I deleted the files on the ide drive, then cp from software raid drive to the ide drive:


root@fbc5:/tmp # time rsync --stats -v sever* /bkup3
severn-i386-disc1.iso
severn-i386-disc2.iso
severn-i386-disc3.iso

Number of files: 3
Number of files transferred: 3
Total file size: 1959821312 bytes
Total transferred file size: 1959821312 bytes
Literal data: 1959821312 bytes
Matched data: 0 bytes
File list size: 72
Total bytes written: 1960060740
Total bytes read: 68

wrote 1960060740 bytes  read 68 bytes  12136599.43 bytes/sec
total size is 1959821312  speedup is 1.00

69.26user 73.34system 2:40.93elapsed 88%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (180major+308minor)pagefaults 0swaps





-------------------------------------- this is a listing of the files used in the above:

root@fbc5:/bkup3 # ls -l sev*
-rw-r--r-- 1 rob pro 658309120 Sep 24 16:08 severn-i386-disc1.iso
-rw-r--r-- 1 rob pro 668598272 Sep 24 16:10 severn-i386-disc2.iso
-rw-r--r-- 1 rob pro 632913920 Sep 24 16:12 severn-i386-disc3.iso


and comments on the speed or cpu usage?

here is info on the cpus... this is an old dell computer...

root@fbc5:/bkup3 # cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 7
model name : Pentium III (Katmai)
stepping : 3
cpu MHz : 547.187
cache size : 512 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 2
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse
bogomips : 1091.17


processor : 1
vendor_id : GenuineIntel
cpu family : 6
model : 7
model name : Pentium III (Katmai)
stepping : 3
cpu MHz : 547.187
cache size : 512 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 2
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse
bogomips : 1091.17


root@fbc5:/bkup3 # uname -r
2.4.21-0.25mdksmp










Hermann Himmelbauer wrote:


reading/writing with full speed? (e.g. cat big-file > /dev/null)
I read that the ICH5R and the Promise use only ~ 3% of the CPU.

		Best Regards,
		Hermann




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