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Article (Print)
(81)
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(1)
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8%
Getting started with I/O profiling
30.11.2025
Home
»
Archive
»
2012
»
Issue 08: FreeNAS
»
of read requests issued to the device per second. w/
s
: Number of write requests issued to the device per second. r
MB/s
: Number of megabytes read from the device per second. w
MB/s
: Number
8%
A Btrfs field test and workshop
31.10.2025
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»
Archive
»
2012
»
Issue 11: Cloud...
»
, you can use the current package from Debian Sid [4], which is available there as version
0
.19+20120328. After meeting these preconditions, you can start with a fresh Ubuntu
12
.04 LTS server default
8%
Tracing applications with OProfile and SystemTap
30.11.2025
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»
Archive
»
2010
»
Issue 1: System...
»
686 oprofile-
0
.9.5-4.fc
12
.i686 To profile the kernel, you need to tell OProfile where the kernel image is located with the --vmlinux option: opcontrol --setup --vmlinux=/usr/lib/debug/lib/ modules
8%
Beyond monitoring: Mathematical load simulation in Perl
30.11.2025
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»
Archive
»
2011
»
Issue 6: Perfor...
»
Model"; 11 $work = "ebiz-tx";
12
$node1 = "WebServer"; 13 $node2 = "AppServer"; 14 $node3 = "DBMServer"; 15 $think =
0.0
* 1e-3; # as per test system 16 $dtime = 2.2 * 1e-3; # dummy service time 17 18
8%
One metric to rule them all
31.10.2025
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»
Archive
»
2012
»
Issue 11: Cloud...
»
at the output of uptime [1] on OS X: 13:03 up 2 days,
12
:01, 2 users, load averages:
0
.52
0
.59
0
.63 The uptime command displays the load average in its common form, averaging the last one, five, and 15 minutes
8%
An IT nomad's daily diary
30.11.2025
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»
Archive
»
2011
»
Issue 6: Perfor...
»
\ 02 --hostname=foo.bar.de --mac- address=
00
:40:26:CA:10:DD \ 03 --kopts="stage=test app=www" --ksmeta="stage=test app=www" 04 # cobbler system edit --name=foo --interface=eth
0
--mac=
00
:40:26:CA
8%
Taming the HPC Software Stack Fragmentation Problem
21.07.2026
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Articles
»
_systems = ['cluster:gpu', 'cluster:cpu'] valid_prog_environs = ['gnu-mpi'] modules = ['gcc/
12.3.0
', 'openmpi/4.1.5', 'gromacs/2023.3'] executable = 'gmx_mpi mdrun' executable_opts = [ '-
s
', 'benchMEM.tpr', '-nsteps', '1000
7%
Workshop: Container virtualization with LXC on Ubuntu 10.04
30.11.2025
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»
Archive
»
2011
»
Issue 6: Perfor...
»
.network.type = veth 04 lxc.network.flags = up 05 lxc.network.link = br
0
06 lxc.network.hwaddr = 08:
00:12
:34:56:78 07 #lxc.network.ipv4 =
0.0.0.0
08 lxc.network.ipv4 = 192.168.1.69 09 lxc.network.name = eth
0
10 lxc
7%
I/O benchmarks with Fio
30.11.2025
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»
Archive
»
2011
»
Issue 5: Pen Te...
»
/
0
K /
s
] [4137 /
0
iops] [eta
00
m:06
s
] In the example, the first job is performing a sequential read, marked as r in square brackets, while Fio hasn't initialized the second job, marked as P
7%
Managing virtual machines
30.11.2025
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»
Archive
»
2012
»
Issue 09: Windo...
»
/sysconfig/network-scripts/ifcfg-eth
0
-e "
s
/
/
/" You need a similar approach with the Udev rules mentioned earlier. In this way, you can also replace the hostname so that it matches the name assigned during
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