View source for My hobby benchmarks

= Performance =

== startup times ==

Inspiron Mini 9 (Ubuntu): 40 seconds

Latitude 2100 (Ubuntu): 60 seconds

== my QEMU benchmark ==

QEmu guest system openSUSE 10.2, command is
 1:time (for i in $(seq 1 1 10000); do echo $i>>file;done)
 2:time (for i in $(seq 1 1 10000); do echo $i>>/dev/null;done)

 host command times without kqemu times with kqemu times native
 XEON 1       17-7-2     
 XEON 2       16-7-1
 PIV  1       20-8-3              6-2-2            1-0-0

== my easy benchmark == 

Goal: Get a rough impression of system power
Command is
 time (for i in $(seq 1 1 10000); do echo $i>>file;done)
Or if bash is not available, write a script that does this and call it using time
 system            real time  user time  system time
 Nokia N810        2.8s       0.8s         0.9s
 2.4GHz Core2 Quad 0.3s       0.2s         0.1s
 [[raspberry pi]]      3.7s       2.7s         1.0s

== my memory benchmark ==

Goal: Get a rough impression of memory throughput
Command is 
 dd if=/dev/zero of=/dev/shm/test bs=1M count=400
Results:
 system           throughput/(MB/s)    command if not default
 [[Studio XPS]]       4400
 [[Inspiron Mini 9]]   395
 [[raspberry pi]]      134             dd if=/dev/zero of=/dev/shm/test bs=1M count=40

== Compilation ==

=== simple compilation ===

==== ARM processor  ====
<pre>
Nokia-N810-43-7:~# cat /proc/cpuinfo | grep Processor
Processor	: ARMv6-compatible processor rev 2 (v6l)
Nokia-N810-43-7:~# cat main.cpp
#include <iostream>
int main()
{
  std::cout << "hello world" << std::endl;
}
Nokia-N810-43-7:~# time g\+\+-3.4 main.cpp 
real	0m 7.97s
user	0m 7.60s
sys	0m 0.35s
</pre>

<pre>
pi@raspberrypi ~ $ cat /proc/cpuinfo | grep Processor
Processor       : ARMv6-compatible processor rev 7 (v6l)
pi@raspberrypi ~ $ cat main.cpp
#include <iostream>
int main()
{
  std::cout << "hello world" << std::endl;
}
pi@raspberrypi ~ $ time g++-4.6 main.cpp

real    0m4.230s
user    0m4.000s
sys     0m0.180s
</pre>

==== ATOM processor ====
<pre>
tstaerk@dell-desktop:~$ hwinfo --cpu --short
cpu:                                                            
                       Intel(R) Atom(TM) CPU N270   @ 1.60GHz, 800 MHz
                       Intel(R) Atom(TM) CPU N270   @ 1.60GHz, 800 MHz
tstaerk@dell-desktop:~$ cat main.cpp 
#include <iostream>
int main() 
{
  std::cout << "hello world" << std::endl;
}
tstaerk@dell-desktop:~$ g++ --version
g++ (Ubuntu 4.3.3-5ubuntu4) 4.3.3
Copyright (C) 2008 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

tstaerk@dell-desktop:~$ time g++ main.cpp 

real	0m0.880s
user	0m0.752s
sys	0m0.096s
</pre>

=== Linux kernel compilation ===
Here I compare the compilation times of the Linux kernel 2.6.27 over different platforms. As time I use the real time that I get from e.g. ''time make -j4''. When comparing keep in mind
* I am a lazy guy and use default installations for all distributions
* some compilations are on the x64 platform, others on x32
* different distributions bring different C compilers and library environments
* some of the results are virtualized, some not
* yes "" | make config produces a different .config file for different hardware
* this is a real-world benchmark, not a synthetic one
** this is primary a CPU benchmark, but disk I/O plays a role

==== Commands ====
Here are the commands for the benchmark
 wget ftp://ftp.kernel.org/pub/linux/kernel/v2.6/linux-2.6.27.2.tar.gz
 rm -rf linux-2.6.27.2
 tar xvzf linux-2.6.27.2.tar.gz
 cd linux-2.6.27.2
 yes "" | make config
 '''time make -j4'''
If the make command is different, it is notified in the results table.

==== Results ====
{| class="wikitable sortable" border=1
! computer !! OS !! gcc !! time !! command !! remark
|-
| 4 || SUSE 11.1 || 4.3.2 || 73min || make -j4 || on a USB harddisk
|-
| 6 || SUSE 11.1 || 4.3.2 || 14min || make -j4 ||
|-
| 6 || SUSE 11.1 || 4.3.2 || 25min || make -j2 ||
|-
| 6 || SUSE 11.1 || 4.3.2 || 50min || make -j1 ||
|-
| 6.1 || SUSE 11.1 || 4.3.2 || 68min || make -j4 ||
|-
| 6.2 || SUSE 11.1 || 4.3.2 || 54min || make -j4 ||
|-
| [[Latitude 2100]] || Ubuntu 9.04 || 4.3.3 || 137min || make -j4 ||
|-
| [[Studio XPS]] || SUSE 11.2 || 4.4.1 || 1m 20s || make -j8 ||  
|-
| [[Studio XPS]] || SUSE 11.2 || 4.4.1 || 1m 18s || make -j8 || how's variance?  
|-
| [[Studio XPS]] || SUSE 11.2 || 4.4.1 || 1m 41s || make -j4 ||
|-
| [[Studio XPS]] || SUSE 11.2 || 4.4.1 || 1m 43s || make -j4 || how's variance?
|-
| [[Studio XPS]] || SUSE 11.2 || 4.4.1 || 2m 43s || make -j2 || 
|-
| [[Studio XPS]] || SUSE 11.2 || 4.4.1 || 2m 43s || make -j2 || how's variance?
|-
| [[Studio XPS]] || SUSE 11.2 || 4.4.1 || 5m 21s || make ||
|-
| 8.1 || SUSE 11.2 || 4.4.1 || 1m 38s || make -j8 ||
|-
| 8.1 || SUSE 11.2 || 4.4.1 || 1m 38s || make -j8 || how's variance?  
|}

 Computer (processors/cores/threads)
 4: 2x1.83GHz P-M, 2 GB RAM (1/2/2)
 6: 4x2.4GHz Intel Core2 Quad (x64), 4 GB RAM (1/4/4)
 6.1: VMWare Server 2.0 virtual machine with 1 vCPUs, 1 GB RAM on (6) with SUSE 11.1
 6.2: VMWare Server 2.0 virtual machine with 2 vCPUs, 1 GB RAM on (6) with SUSE 11.1
 7: Intel Atom 1.6GHz (1/1/2)
 8: Core i7 860 2.8GHz (1/4/8)
 8.1: KVM virtual machine with 8 vCPUs, 1 GB RAM on (8) with SUSE 11.2

=== KDE compilation benchmark ===
The KDE compilation benchmark was supposed to show the KDE compilation capabilities of distinct systems. However I use it less in recent times because compile time largely differs depending on 
* what libraries you have installed
* what library versions you have installed
* what KDE version you compile.
To resolve all this, I use my Linux kernel compilation benchmark.
 Computer command time   Env remark
 1        1       2:39h  1
 2        1       0:55h  1   HT on
 2        1       0:59h  1   HT off
 3        2       41:31m 2   
 2        2       1:35h  2   HT on
 4        3       16:24m 3   make -j2 
 2        3       43:23  3 
 5        2        2:55m 2   make -j32
 6        4       15:36m 4   make -j8
 6        5        1:13h 5   (virtualbox)
 6        5       38:32m 6   make -j2
 
 Computer (processors/cores/threads)
 1 1.5 GHz P-IV, 256 MB RAM (1/1/1)
 2 3.0 GHz P-IV, 512 MB RAM (1/1/2)
 3 1.73GHz P-M, 512 MB RAM (1/1/1)
 4 2x1.83GHz P-M, 2 GB RAM (1/2/2)
 5 16x2.92GHz Xeon, 128 GB RAM (8/16/16)
 6 4x2.4GHz x64, 4 GB RAM (1/4/4)
 
 Environment
 1: GCC 3
 2: GCC 4, more and newer code
 3: GCC 4, more and newer code, CMake, QT 4, KDEPIM 656855
 4: GCC 4, KDEPIM Revision: 773158, Automake, QT 3
 5: GCC 4, KDEPIM Revision: 854206, CMake, QT 4 on VirtualBox
 6: GCC 4, KDEPIM Revision: 854206, CMake, QT 4 on VMWare VM, 2 vCPU

 Command 
 1 date >> date.dat && rm -rf bench && tar -xvf bench.tar && cd bench/kdepim/ && make -f Makefile.cvs && ./configure && make && make install && cd ../.. && date >> date.dat
 2 date >> date.dat && rm -rf bench && tar -xvf bench.tar && cd bench/kdepim/ && make -f Makefile.cvs && ./configure && make -j4 && make install && cd ../.. && date >> date.dat
 3 make clean; rm CMakeCache.txt; date >>date.txt && cmakekde && date >>date.txt
 4 make clean && date>>date.dat && make -f Makefile.cvs && ./configure && unsermake -j8 && unsermake install && date >> date.dat
 5 make clean; rm CMakeCache.txt; date >>date.txt && cmake . && make && make install && date >>date.txt

== disk I/O ==
The call
 bonnie -o_direct
works on SUSE 10.0, but not on SUSE 11.1.

USB disk on scorpio, the lower USB card.
 scorpio:/media/disk # bonnie -o_direct -s 1
 Bonnie: Warning: You have 250MB RAM, but you test with only 1MB datasize!
 Bonnie:          This might yield unrealistically good results,
 Bonnie:          for reading and seeking and writing.
 Bonnie 1.4: File './Bonnie.4608', size: 1048576, volumes: 1
 Using O_DIRECT for block based I/O
 Writing with putc()...         done:    116 kB/s   5.0 %CPU
IDE disk on scorpio
 scorpio:~ # bonnie -o_direct -s 1
 Bonnie: Warning: You have 250MB RAM, but you test with only 1MB datasize!
 Bonnie:          This might yield unrealistically good results,
 Bonnie:          for reading and seeking and writing.
 Bonnie 1.4: File './Bonnie.5050', size: 1048576, volumes: 1
 Using O_DIRECT for block based I/O 
 Writing with putc()...         done:  16079 kB/s  81.7 %CPU
USB disk on duffman (Latitude D610)
 duffman:~ # bonnie -o_direct -s 1
 Bonnie: Warning: You have 503MB RAM, but you test with only 1MB datasize!
 Bonnie:          This might yield unrealistically good results,
 Bonnie:          for reading and seeking and writing.
 Bonnie 1.4: File './Bonnie.9098', size: 1048576, volumes: 1
 Using O_DIRECT for block based I/O
 Writing with putc()...         done:   8440 kB/s  52.8 %CPU
active USB disk on chris (Latitude D620)
 duffman:~ # bonnie -o_direct -s 1
 Bonnie: Warning: You have 2026MB RAM, but you test with only 1MB datasize!
 Bonnie:          This might yield unrealistically good results,
 Bonnie:          for reading and seeking and writing.
 Bonnie 1.4: File './Bonnie.5974', size: 1048576, volumes: 1
 Using O_DIRECT for block based I/O
 Writing with putc()...         done:   9081 kB/s  49.7 %CPU
internal disk in bort (Inspiron 530)
 bort:~ # bonnie -s 1000
 Bonnie 1.4: File './Bonnie.13566', size: 1048576000, volumes: 1
 Writing with putc()...         done:  67207 kB/s  92.1 %CPU
Internal 1TB 32MB Samsung disk in (bort=tweedleburg)
 tweedleburg:/mnt/sdb1 # bonnie -s 1000
 Bonnie 1.4: File './Bonnie.5710', size: 1048576000, volumes: 1
 Writing with putc()...         done:  67345 kB/s  92.9 %CPU

=== Toshiba disk from 2011-07-18 ===
I test the Toshiba 1 TB USB 3 disk on [[my Studio XPS]] formatted with 

==== NTFS ====

===== dd write =====
 dd if=/dev/zero of=datei bs=4096 count=1000000
 1000000+0 records in
 1000000+0 records out
 4096000000 bytes (4.1 GB) copied, 103.429 s, 39.6 MB/s

==== ext4 ====

===== bonnie =====
 tweedleburg:/mnt/sdg1 # bonnie -s 1000
 Bonnie 1.4: File './Bonnie.9084', size: 1048576000, volumes: 1
 Writing with putc()...         done:  44337 kB/s  65.0 %CPU

 tweedleburg:/mnt/sdg1 # bonnie -s 10000
 Bonnie 1.4: File './Bonnie.9111', size: 10485760000, volumes: 1
 Writing with putc()...         done:  36879 kB/s  54.2 %CPU

Now the disk is connected to a USB 3 port via a USB 3 cable
 tweedleburg:/mnt/sdg1 # bonnie -s 1000
 Bonnie 1.4: File './Bonnie.1458', size: 1048576000, volumes: 1
 Writing with putc()...         done:  66572 kB/s  98.2 %CPU

 tweedleburg:/mnt/sdg1 # bonnie -s 10000
 Bonnie 1.4: File './Bonnie.1554', size: 10485760000, volumes: 1
 Writing with putc()...         done:  66571 kB/s  97.4 %CPU

===== dd write =====
 dd if=/dev/zero of=datei bs=4096 count=1000000
* result: 37.6 MB/s; 35.0 MB/s; 34.8 MB/s
* after using a USB 3 cable
* result: 120 MB/s; 112 MB/s; 113 MB/s

===== hdparm =====
Using USB 3.0 port, USB 2.0 cable:
 tweedleburg:/mnt/sdg1 # hdparm -tT /dev/sdg
 
 /dev/sdg:
  Timing cached reads:   20308 MB in  2.00 seconds = 10163.04 MB/sec
  Timing buffered disk reads: 110 MB in  3.05 seconds =  36.05 MB/sec
Using USB 2.0 port, USB 2.0 cable:
 hdparm -tT /dev/sdh
 
 /dev/sdh:
  Timing cached reads:   20016 MB in  2.00 seconds = 10017.85 MB/sec
  Timing buffered disk reads: 104 MB in  3.05 seconds =  34.11 MB/sec
Using USB 3.0 port, USB 3.0 cable:
 hdparm -tT /dev/sdg
 
 /dev/sdg:
  Timing cached reads:   20762 MB in  2.00 seconds = 10391.41 MB/sec
  Timing buffered disk reads: 348 MB in  3.01 seconds = 115.57 MB/sec

===== iops =====
Disk is attached via a USB 2.0 cable to a USB 3.0 port:
<pre>
wget http://hg.sickos.org/iops/raw-file/3825f2a593ff/iops
tweedleburg:/mnt/sdg1 # python iops /dev/sdg1
/dev/sdg1, 999.15 GB, 32 threads:
 512   B blocks:   65.4 IO/s,  32.7 KiB/s (267.8 kbit/s)
   1 KiB blocks:   61.6 IO/s,  61.6 KiB/s (504.3 kbit/s)
   2 KiB blocks:   59.7 IO/s, 119.4 KiB/s (978.0 kbit/s)
   4 KiB blocks:   53.3 IO/s, 213.1 KiB/s (  1.7 Mbit/s)
   8 KiB blocks:   52.2 IO/s, 417.4 KiB/s (  3.4 Mbit/s)
  16 KiB blocks:   51.1 IO/s, 816.9 KiB/s (  6.7 Mbit/s)
  32 KiB blocks:   46.1 IO/s,   1.4 MiB/s ( 12.1 Mbit/s)
  64 KiB blocks:   40.8 IO/s,   2.5 MiB/s ( 21.4 Mbit/s)
 128 KiB blocks:   31.3 IO/s,   3.9 MiB/s ( 32.8 Mbit/s)
</pre>

<pre>
tweedleburg:~ # python iops /mnt/sdg1/datei
/mnt/sdg1/datei,   4.10 GB, 32 threads:
 512   B blocks:  289.2 IO/s, 144.6 KiB/s (  1.2 Mbit/s)
   1 KiB blocks:  291.4 IO/s, 291.4 KiB/s (  2.4 Mbit/s)
   2 KiB blocks:  268.1 IO/s, 536.3 KiB/s (  4.4 Mbit/s)
   4 KiB blocks:  244.0 IO/s, 975.9 KiB/s (  8.0 Mbit/s)
   8 KiB blocks:  249.6 IO/s,   1.9 MiB/s ( 16.4 Mbit/s)
  16 KiB blocks:  222.2 IO/s,   3.5 MiB/s ( 29.1 Mbit/s)
  32 KiB blocks:  177.8 IO/s,   5.6 MiB/s ( 46.6 Mbit/s)
  64 KiB blocks:  130.9 IO/s,   8.2 MiB/s ( 68.6 Mbit/s)
 128 KiB blocks:  115.0 IO/s,  14.4 MiB/s (120.6 Mbit/s)
 256 KiB blocks:   82.4 IO/s,  20.6 MiB/s (172.9 Mbit/s)
 512 KiB blocks:   58.5 IO/s,  29.3 MiB/s (245.5 Mbit/s)
   1 MiB blocks:   37.2 IO/s,  37.2 MiB/s (311.8 Mbit/s)
   2 MiB blocks:   20.3 IO/s,  40.6 MiB/s (340.7 Mbit/s)
</pre>
Hm, seems this datei has been read completely into memory. Or was it that we read from the disk where the executable is situated?
<pre>
tweedleburg:~ # python iops /dev/sdg1
/dev/sdg1, 999.15 GB, 32 threads:
 512   B blocks:   65.4 IO/s,  32.7 KiB/s (268.0 kbit/s)
   1 KiB blocks:   63.4 IO/s,  63.4 KiB/s (519.2 kbit/s)
   2 KiB blocks:   60.4 IO/s, 120.8 KiB/s (989.2 kbit/s)
   4 KiB blocks:   53.4 IO/s, 213.8 KiB/s (  1.8 Mbit/s)
   8 KiB blocks:   52.9 IO/s, 422.8 KiB/s (  3.5 Mbit/s)
  16 KiB blocks:   51.5 IO/s, 823.8 KiB/s (  6.7 Mbit/s)
  32 KiB blocks:   48.8 IO/s,   1.5 MiB/s ( 12.8 Mbit/s)
  64 KiB blocks:   39.9 IO/s,   2.5 MiB/s ( 20.9 Mbit/s)
 128 KiB blocks:   31.8 IO/s,   4.0 MiB/s ( 33.4 Mbit/s)
</pre>
Now disk is connected via a USB 3 cable to a USB 3 port:
<pre>
tweedleburg:/mnt/sdg1 # python iops /dev/sdg1
/dev/sdg1, 999.15 GB, 32 threads:
 512   B blocks:   65.3 IO/s,  32.6 KiB/s (267.4 kbit/s)
   1 KiB blocks:   64.4 IO/s,  64.4 KiB/s (527.7 kbit/s)
   2 KiB blocks:   61.2 IO/s, 122.4 KiB/s (  1.0 Mbit/s)
   4 KiB blocks:   56.9 IO/s, 227.7 KiB/s (  1.9 Mbit/s)
   8 KiB blocks:   53.3 IO/s, 426.2 KiB/s (  3.5 Mbit/s)
  16 KiB blocks:   51.5 IO/s, 824.1 KiB/s (  6.8 Mbit/s)
  32 KiB blocks:   46.6 IO/s,   1.5 MiB/s ( 12.2 Mbit/s)
  64 KiB blocks:   43.3 IO/s,   2.7 MiB/s ( 22.7 Mbit/s)
 128 KiB blocks:   37.7 IO/s,   4.7 MiB/s ( 39.5 Mbit/s)
 256 KiB blocks:   29.0 IO/s,   7.3 MiB/s ( 60.9 Mbit/s)
</pre>

=== Verbatim disk from 2010-03-13 ===
I test the [[verbatim disk bought 2010-03-13|Verbatim disk]] 1.5TB on [[my Studio XPS]] formatted with ext4.

==== eSATA ====
Connected via eSATA port

===== bonnie =====
 linux-q7sh:/mnt/sdg1 # bonnie -s 1000
 Bonnie: Warning: You have 1845MB RAM, but you test with only 1000MB datasize!
 Bonnie:          This might yield unrealistically good results,
 Bonnie:          for reading and seeking and writing.
 Bonnie 1.4: File './Bonnie.24308', size: 1048576000, volumes: 1 
 Writing with putc()...         done:  69377 kB/s  99.5 %CPU

<pre>
linux-q7sh:/mnt/sdg1 # bonnie -s 10000
Bonnie 1.4: File './Bonnie.27329', size: 10485760000, volumes: 1
Writing with putc()...         done:  61961 kB/s  89.8 %CPU
Rewriting...                   done:  55824 kB/s   8.2 %CPU
Writing intelligently...       done: 121668 kB/s  11.3 %CPU
Reading with getc()...         done:  71023 kB/s  91.6 %CPU
Reading intelligently...       done: 112878 kB/s   8.0 %CPU
Seeker 1...Seeker 2...Seeker 3...start 'em...done...done...done...
              ---Sequential Output (nosync)--- ---Sequential Input-- --Rnd Seek-
              -Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --04k (03)-
Machine    MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU   /sec %CPU
linux- 1*10000 61961 89.8121668 11.3 55824  8.2 71023 91.6112878  8.0  186.7  0.6
</pre>
The numbers are reproducible:
<pre>
linux-q7sh:/mnt/sdg1 # bonnie -s 10000
Bonnie 1.4: File './Bonnie.28211', size: 10485760000, volumes: 1
Writing with putc()...         done:  60538 kB/s  87.6 %CPU
Rewriting...                   done:  56210 kB/s   8.2 %CPU
Writing intelligently...       done: 121460 kB/s  11.3 %CPU
Reading with getc()...         done:  70686 kB/s  91.5 %CPU
Reading intelligently...       done: 112567 kB/s   8.1 %CPU
Seeker 1...Seeker 2...Seeker 3...start 'em...done...done...done...
              ---Sequential Output (nosync)--- ---Sequential Input-- --Rnd Seek-
              -Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --04k (03)-
Machine    MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU   /sec %CPU
linux- 1*10000 60538 87.6121460 11.3 56210  8.2 70686 91.5112567  8.1  199.5  0.6
</pre>

===== dd write =====
 linux-q7sh:/mnt/sdg1 # dd if=/dev/zero of=datei bs=4096 count=1000000
 1000000+0 records in
 1000000+0 records out
 4096000000 bytes (4.1 GB) copied, 25.2149 s, 162 MB/s
 linux-q7sh:/mnt/sdg1 # dd oflag=direct if=/dev/zero of=datei bs=4096 count=1000000
 1000000+0 records in
 1000000+0 records out
 4096000000 bytes (4.1 GB) copied, 86.6259 s, 47.3 MB/s

===== cp =====
<pre>
linux-q7sh:/mnt/sdg1 # ll /tmp/disk.img; sync; echo 3 > /proc/sys/vm/drop_caches; time (cp /tmp/disk.img .;sync)
-rw-r--r-- 1 root root 1024000000 Mar 13 11:00 /tmp/disk.img

real    0m13.793s
user    0m0.054s
sys     0m4.434s
linux-q7sh:/mnt/sdg1 # ll /tmp/disk.img; sync; echo 3 > /proc/sys/vm/drop_caches; time (cp /tmp/disk.img .;sync)
-rw-r--r-- 1 root root 1024000000 Mar 13 11:00 /tmp/disk.img

real    0m13.899s
user    0m0.047s
sys     0m4.533s
linux-q7sh:/mnt/sdg1 # mkdir test
linux-q7sh:/mnt/sdg1 # ll disk.img; sync; echo 3 > /proc/sys/vm/drop_caches; time (cp disk.img test;sync)
-rw-r--r-- 1 root root 1024000000 Mar 13 18:06 disk.img

real    0m18.126s
user    0m0.052s
sys     0m6.037s
linux-q7sh:/mnt/sdg1 # ll disk.img; sync; echo 3 > /proc/sys/vm/drop_caches; time (cp disk.img test;sync)
-rw-r--r-- 1 root root 1024000000 Mar 13 18:06 disk.img

real    0m17.821s
user    0m0.046s
sys     0m6.037s
</pre>

===== hdparm =====
 linux-q7sh:/mnt/sdg1 # hdparm -tT /dev/sdg
 
 /dev/sdg:
  Timing cached reads:   19888 MB in  2.00 seconds = 9954.92 MB/sec
  Timing buffered disk reads:  346 MB in  3.00 seconds = 115.33 MB/sec
 linux-q7sh:/mnt/sdg1 # hdparm -tT /dev/sdg1
 
 /dev/sdg1:
  Timing cached reads:   20264 MB in  2.00 seconds = 10143.18 MB/sec
  Timing buffered disk reads:  346 MB in  3.01 seconds = 115.12 MB/sec

===== iotest =====
<pre>
tweedleburg:/mnt/sdg1 # python /root/iotest/iotest /dev/sdj
Reading
/dev/sdj,   1.50 TB:
 512   B blocks:   59.4 IOs/s,  29.7 KiB/s (243.2 kbit/s)
   1 KiB blocks:   61.7 IOs/s,  61.7 KiB/s (505.3 kbit/s)
   2 KiB blocks:   60.3 IOs/s, 120.5 KiB/s (987.1 kbit/s)
   4 KiB blocks:   60.7 IOs/s, 242.6 KiB/s (  2.0 Mbit/s)
   8 KiB blocks:   59.3 IOs/s, 474.3 KiB/s (  3.9 Mbit/s)
  16 KiB blocks:   58.5 IOs/s, 936.0 KiB/s (  7.7 Mbit/s)
  32 KiB blocks:   53.1 IOs/s,   1.7 MiB/s ( 13.9 Mbit/s)
  64 KiB blocks:   53.3 IOs/s,   3.3 MiB/s ( 28.0 Mbit/s)
 128 KiB blocks:   53.0 IOs/s,   6.6 MiB/s ( 55.6 Mbit/s)
 256 KiB blocks:   49.3 IOs/s,  12.3 MiB/s (103.3 Mbit/s)
 512 KiB blocks:   43.7 IOs/s,  21.9 MiB/s (183.4 Mbit/s)
   1 MiB blocks:   34.5 IOs/s,  34.5 MiB/s (289.4 Mbit/s)
   2 MiB blocks:   23.9 IOs/s,  47.8 MiB/s (401.0 Mbit/s)
   4 MiB blocks:   16.5 IOs/s,  66.0 MiB/s (553.5 Mbit/s)
   8 MiB blocks:    9.6 IOs/s,  77.0 MiB/s (646.1 Mbit/s)
  16 MiB blocks:    5.3 IOs/s,  84.4 MiB/s (707.6 Mbit/s)
  32 MiB blocks:    1.8 IOs/s,  56.2 MiB/s (471.3 Mbit/s)
  64 MiB blocks:    0.9 IOs/s,  58.7 MiB/s (492.7 Mbit/s)
</pre>

==== USB ====
Disk now connected via USB 2 port

===== bonnie =====
<pre>
linux-q7sh:/mnt/sdg1 # bonnie -s 10000
Bonnie 1.4: File './Bonnie.30955', size: 10485760000, volumes: 1
Writing with putc()...         done:  32764 kB/s  50.1 %CPU
Rewriting...                   done:  13831 kB/s   2.0 %CPU
Writing intelligently...       done:  31763 kB/s   3.6 %CPU
Reading with getc()...         done:  28080 kB/s  59.0 %CPU
Reading intelligently...       done:  30322 kB/s   2.2 %CPU
Seeker 1...Seeker 2...Seeker 3...start 'em...done...done...done...
              ---Sequential Output (nosync)--- ---Sequential Input-- --Rnd Seek-
              -Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --04k (03)-
Machine    MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU   /sec %CPU
linux- 1*10000 32764 50.1 31763  3.6 13831  2.0 28080 59.0 30322  2.2  165.1  0.7
</pre>
This is also reproducible:
<pre>
linux-q7sh:/mnt/sdg1 # bonnie -s 10000
Bonnie 1.4: File './Bonnie.1171', size: 10485760000, volumes: 1
Writing with putc()...         done:  33053 kB/s  50.5 %CPU
Rewriting...                   done:  13759 kB/s   2.0 %CPU
Writing intelligently...       done:  32133 kB/s   3.6 %CPU
Reading with getc()...         done:  30158 kB/s  61.5 %CPU
Reading intelligently...       done:  28976 kB/s   2.3 %CPU
Seeker 1...Seeker 2...Seeker 3...start 'em...done...done...done...
              ---Sequential Output (nosync)--- ---Sequential Input-- --Rnd Seek-
              -Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --04k (03)-
Machine    MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU   /sec %CPU
linux- 1*10000 33053 50.5 32133  3.6 13759  2.0 30158 61.5 28976  2.3  174.2  0.5
</pre>

===== cp =====
<pre>
linux-q7sh:/mnt/sdg1 # sync; echo 3 > /proc/sys/vm/drop_caches; time (cp /tmp/disk.img .;sync)

real    0m40.560s
user    0m0.040s 
sys     0m7.571s 
linux-q7sh:/mnt/sdg1 # ll /tmp/disk.img; sync; echo 3 > /proc/sys/vm/drop_caches; time (cp /tmp/disk.img .;sync)
-rw-r--r-- 1 root root 1024000000 Mar 13 11:00 /tmp/disk.img                                                    

real    0m40.095s
user    0m0.057s 
sys     0m7.697s
</pre>

=== SanDisk Cruzer USB Stick from 2011-12-01 ===

==== iops ====
 wget http://benjamin-schweizer.de/files/iops/iops-2011-02-11
<pre>
# python iops-2011-02-11 /dev/sdc
/dev/sdc,  16.01 GB, 32 threads:
 512   B blocks:  884.7 IO/s, 442.3 KiB/s (  3.6 Mbit/s)
   1 KiB blocks:  699.3 IO/s, 699.3 KiB/s (  5.7 Mbit/s)
   2 KiB blocks:  589.0 IO/s,   1.2 MiB/s (  9.7 Mbit/s)
   4 KiB blocks:  422.4 IO/s,   1.6 MiB/s ( 13.8 Mbit/s)
   8 KiB blocks:  385.1 IO/s,   3.0 MiB/s ( 25.2 Mbit/s)
  16 KiB blocks:  285.2 IO/s,   4.5 MiB/s ( 37.4 Mbit/s)
  32 KiB blocks:  261.1 IO/s,   8.2 MiB/s ( 68.5 Mbit/s)
  64 KiB blocks:  142.9 IO/s,   8.9 MiB/s ( 74.9 Mbit/s)
 128 KiB blocks:   87.3 IO/s,  10.9 MiB/s ( 91.5 Mbit/s)
 256 KiB blocks:   66.2 IO/s,  16.5 MiB/s (138.8 Mbit/s)
 512 KiB blocks:   41.8 IO/s,  20.9 MiB/s (175.2 Mbit/s)
   1 MiB blocks:   24.8 IO/s,  24.8 MiB/s (208.4 Mbit/s)
</pre>

=== INTEL SSDSC2MH12 ===
Internal in my [[Studio XPS]]

==== iops ====
<pre>
# python iops-2011-02-11 /dev/sda
/dev/sda, 120.03 GB, 32 threads:
 512   B blocks: 21527.2 IO/s,  10.5 MiB/s ( 88.2 Mbit/s)
   1 KiB blocks: 18599.1 IO/s,  18.2 MiB/s (152.4 Mbit/s)
   2 KiB blocks: 14790.5 IO/s,  28.9 MiB/s (242.3 Mbit/s)
   4 KiB blocks: 10359.1 IO/s,  40.5 MiB/s (339.4 Mbit/s)
   8 KiB blocks: 9719.4 IO/s,  75.9 MiB/s (637.0 Mbit/s)
  16 KiB blocks: 6171.4 IO/s,  96.4 MiB/s (808.9 Mbit/s)
  32 KiB blocks: 3697.8 IO/s, 115.6 MiB/s (969.3 Mbit/s)
  64 KiB blocks: 2109.0 IO/s, 131.8 MiB/s (  1.1 Gbit/s)
 128 KiB blocks: 1152.6 IO/s, 144.1 MiB/s (  1.2 Gbit/s)
 256 KiB blocks:  729.1 IO/s, 182.3 MiB/s (  1.5 Gbit/s)
 512 KiB blocks:  440.7 IO/s, 220.3 MiB/s (  1.8 Gbit/s)
   1 MiB blocks:  247.8 IO/s, 247.8 MiB/s (  2.1 Gbit/s)
   2 MiB blocks:  131.5 IO/s, 263.0 MiB/s (  2.2 Gbit/s)
   4 MiB blocks:   68.8 IO/s, 275.4 MiB/s (  2.3 Gbit/s)
   8 MiB blocks:   34.9 IO/s, 278.9 MiB/s (  2.3 Gbit/s)
  16 MiB blocks:   17.6 IO/s, 281.6 MiB/s (  2.4 Gbit/s)
</pre>

=== SDHC card class 10 from 2013 ===

==== iops ==== 
<pre>
# python iops.py /dev/sdc
/dev/sdc,   7.96 GB, 32 threads:
 512   B blocks:  405.9 IO/s, 202.9 KiB/s (  1.7 Mbit/s)
   1 KiB blocks:  353.4 IO/s, 353.4 KiB/s (  2.9 Mbit/s)
   2 KiB blocks:  276.7 IO/s, 553.5 KiB/s (  4.5 Mbit/s)
   4 KiB blocks:  201.7 IO/s, 806.6 KiB/s (  6.6 Mbit/s)
   8 KiB blocks:  196.0 IO/s,   1.5 MiB/s ( 12.8 Mbit/s)
  16 KiB blocks:  173.9 IO/s,   2.7 MiB/s ( 22.8 Mbit/s)
  32 KiB blocks:  143.2 IO/s,   4.5 MiB/s ( 37.5 Mbit/s)
  64 KiB blocks:  100.9 IO/s,   6.3 MiB/s ( 52.9 Mbit/s)
 128 KiB blocks:   63.4 IO/s,   7.9 MiB/s ( 66.5 Mbit/s)
 256 KiB blocks:   42.5 IO/s,  10.6 MiB/s ( 89.1 Mbit/s)
 512 KiB blocks:   28.4 IO/s,  14.2 MiB/s (119.0 Mbit/s)
</pre>


=== SDHC card class 4 from 2013 ===

==== iops ==== 
<pre>
# python iops.py /dev/sdc
/dev/sdc,   7.82 GB, 32 threads:
 512   B blocks:  766.6 IO/s, 383.3 KiB/s (  3.1 Mbit/s)
   1 KiB blocks:  631.0 IO/s, 631.0 KiB/s (  5.2 Mbit/s)
   2 KiB blocks:  486.6 IO/s, 973.2 KiB/s (  8.0 Mbit/s)
   4 KiB blocks:  339.2 IO/s,   1.3 MiB/s ( 11.1 Mbit/s)
   8 KiB blocks:  332.8 IO/s,   2.6 MiB/s ( 21.8 Mbit/s)
  16 KiB blocks:  273.3 IO/s,   4.3 MiB/s ( 35.8 Mbit/s)
  32 KiB blocks:  200.3 IO/s,   6.3 MiB/s ( 52.5 Mbit/s)
  64 KiB blocks:  125.7 IO/s,   7.9 MiB/s ( 65.9 Mbit/s)
 128 KiB blocks:   75.0 IO/s,   9.4 MiB/s ( 78.7 Mbit/s)
 256 KiB blocks:   48.5 IO/s,  12.1 MiB/s (101.8 Mbit/s)
 512 KiB blocks:   30.0 IO/s,  15.0 MiB/s (125.8 Mbit/s)
</pre>

=== Internal disk ===

==== Inspiron 530n ====
Internal disk in (bort=tweedleburg) being /dev/sda, 1TB 32M Cache Samsung /dev/sdb:
<pre>
tweedleburg:~ # hdparm -tT /dev/sda

/dev/sda:
 Timing cached reads:   7116 MB in  2.00 seconds = 3561.63 MB/sec
 Timing buffered disk reads:  212 MB in  3.03 seconds =  70.05 MB/sec
tweedleburg:~ # hdparm -tT /dev/sdb

/dev/sdb:
 Timing cached reads:   7328 MB in  2.00 seconds = 3668.03 MB/sec
 Timing buffered disk reads:  280 MB in  3.01 seconds =  93.03 MB/sec
</pre>
tweedleburg:/mnt # hdparm -tT /dev/sda

==== Studio XPS ====
Testing the internal disk in [[my Studio XPS]]

===== hdparm =====
<pre>
/dev/sda:
 Timing cached reads:   19312 MB in  2.00 seconds = 9666.35 MB/sec
 Timing buffered disk reads:  356 MB in  3.00 seconds = 118.48 MB/sec
</pre>

===== iotest =====
[http://benjamin-schweizer.de/files/iotest/ IOTest] tells you how many IOPS your system is capable of.
<pre>
tweedleburg:~ # python iotest-2009-09-16 /dev/sda
/dev/sda, 931 GiB:
 512   B blocks:   73.3 IOs/s,  36 KiB/s
   1 KiB blocks:   71.7 IOs/s,  71 KiB/s
   2 KiB blocks:   70.1 IOs/s, 140 KiB/s
   4 KiB blocks:   67.6 IOs/s, 270 KiB/s
   8 KiB blocks:   68.3 IOs/s, 546 KiB/s
  16 KiB blocks:   65.7 IOs/s,   1 MiB/s
  32 KiB blocks:   62.6 IOs/s,   1 MiB/s
  64 KiB blocks:   64.8 IOs/s,   4 MiB/s
 128 KiB blocks:   59.9 IOs/s,   7 MiB/s
 256 KiB blocks:   58.4 IOs/s,  14 MiB/s
 512 KiB blocks:   49.8 IOs/s,  24 MiB/s
   1 MiB blocks:   39.2 IOs/s,  39 MiB/s
   2 MiB blocks:   27.6 IOs/s,  55 MiB/s
   4 MiB blocks:   16.8 IOs/s,  67 MiB/s
   8 MiB blocks:    9.6 IOs/s,  76 MiB/s
  16 MiB blocks:    5.1 IOs/s,  81 MiB/s
  32 MiB blocks:    2.8 IOs/s,  90 MiB/s
  64 MiB blocks:    1.5 IOs/s,  95 MiB/s
 128 MiB blocks:    0.5 IOs/s,  63 MiB/s
</pre>

==== Latitude 2100 ====
On the [[Latitude 2100]], not connected to power supply.

===== iotest =====
<pre>
tstaerk@dell-desktop:~$ sudo python iotest-2009-09-16 /dev/sda
/dev/sda,  74 GiB:
 512   B blocks:   44.3 IOs/s,  22 KiB/s
   1 KiB blocks:   43.7 IOs/s,  43 KiB/s
   2 KiB blocks:   43.3 IOs/s,  86 KiB/s
   4 KiB blocks:   43.3 IOs/s, 173 KiB/s
   8 KiB blocks:   41.5 IOs/s, 331 KiB/s
  16 KiB blocks:   42.0 IOs/s, 672 KiB/s
  32 KiB blocks:   39.4 IOs/s,   1 MiB/s
  64 KiB blocks:   36.7 IOs/s,   2 MiB/s
 128 KiB blocks:   37.5 IOs/s,   4 MiB/s
 256 KiB blocks:   34.4 IOs/s,   8 MiB/s
 512 KiB blocks:   28.7 IOs/s,  14 MiB/s
   1 MiB blocks:   22.0 IOs/s,  22 MiB/s
   2 MiB blocks:   15.3 IOs/s,  30 MiB/s
   4 MiB blocks:    9.3 IOs/s,  37 MiB/s
   8 MiB blocks:    5.5 IOs/s,  43 MiB/s
  16 MiB blocks:    2.9 IOs/s,  47 MiB/s
  32 MiB blocks:    1.5 IOs/s,  47 MiB/s
  64 MiB blocks:    0.7 IOs/s,  43 MiB/s
</pre>

== graphic cards ==

terminal server scorpio: 55-70 FPS with 10 rows from glxgears. Connection between scorpio and bort: 100Mb.
bort: 5179-5199 FPS with 10 rows from glxgears.

== netWork ==
Testing a 100Mb connection between scorpio and bort.

=== WLAN ===
It has been said that the [http://www.linuxintro.org/wiki/FRITZ!Box_7312 FritzBox 7312]'s WLAN is okay for a flat, but too weak for a house. The FritzBox 7270's WLAN is supposed to be strong enough for a house, it has three antennas etc.. I wanted to test this. So I put my [[Latitude 2100]] into a cellar room and started the command
 iwlist scanning | grep -Ei "quality|essid"
I used the same command with a FritzBox 7312 and with a FritzBox 7270 with the same laptop with the same distribution on the same position, same kernel etc.. I verified every result at least 3 times to make sure variance is low.

The results were

{| class="wikitable sortable" border=1
! device !! quality of WLAN
|-
| FritzBox 7312 || 31/70
|-
| FritzBox 7270 || 41/70
|-
|}

=== UMTS ===
Using a Dell/Novatel UMTS card in Alzey: transmission rate from linuxintro.org to home is 6KB/s.
In Frankfurt, transmission rate is 66KB/s. In Berlin: transmission rate is 158KB/s.

{|
! location !! Stick !! LED color !! carrier !! measurement date !! transmission speed
|-
| Alzey || Dell/Novatel UMTS card || - ||  ||  || 6 KB/s
|-
| Frankfurt || Dell/Novatel UMTS card || - || || ||  66 KB/s
|-
| Berlin || Dell/Novatel UMTS card || - || ||  || 158 KB/s
|-
| Berlin, Unter den Linden || Fonic SurfStick || blue || o2 ||  2011-08-10 || 54, 44, 39 KB/s
|-
| Prieros near Berlin || Fonic SurfStick || green  || o2 ||  2011-08-10  || 0.2 KB/s
|-
| Berlin || otelo surfstick || blue || VodAphOne ||  2011-08-12 || 68;73;74 KB/s
|-
| Prieros near Berlin || otelo SurfStick || green  || VodAphOne ||  2011-08-13 || 4.0;4.3;4.4 KB/s
|-
| Alzey || otelo SurfStick || blue || VodAphOne ||  2011-08-15 || 58;8;76 KB/s
|-
| Prieros near Berlin || otelo SurfStick || green || Telekom || 2014-04-18 || 12 KB/s
|-
|}

=== Latency ===
Connection between scorpio and bort: 100Mb over two switches. 10 pings from bort to scorpio: between 0.257 ms and 0.267 ms.
Connection between scorpio and bort:1000Mb direct, no switches. 10 pings from bort to scorpio: between 0.074 ms and 0.103 ms.

=== ThroughPut ===
 dd if=/dev/zero | netcat scorpio 8000
 4.3 MB/s

= KDE memory consumption =
KDE 4
 linux-gqit:~ # free
              total       used       free     shared    buffers     cached
 Mem:       4060060     799476    3260584          0      30328     442632
 -/+ buffers/cache:     326516    3733544
 Swap:            0          0          0
KDE 3
 tweedleburg:~ # free
              total       used       free     shared    buffers     cached
 Mem:       4053152    2152388    1900764          0      89252    1520860
 -/+ buffers/cache:     542276    3510876
 Swap:            0          0          0

= power consumption =

                                  zero load   high load
 3 GHz P IV with 512MB RAM          145.7 W     217.7 W
 2.4 GHz Quad Core with 4GB RAM      72.4 W     152.4 W
 [[Studio XPS|2.8 GHz i7 with 6GB RAM]]             87 W       205 W

 CRT Monitor 14"                          57.5 W
 TFT Monitor 22"                          30.4 W

= Wii =
I have driven the Luigis Piste course on Nintendo Wii and chosen different cars and different figures (Bowser and Yoshi). Here are the times:
Bowser in Offroader on Luigis Piste: 1.28
Bowser in Offroader on Luigis Piste: 1.28
Bowser in Offroader on Luigis Piste: 1.28
Yoshi in Nostalgia on Luigis Piste: 1.28
Yoshi in Bopper-Bolide on Luigis Piste: 1.28
Seems I always need 1.28 on Luigis Piste.