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Article (Print)
(62)
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28%
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
28%
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 $dtime = 2.2 * 1e-3; # dummy service time 17 18
27%
I/O benchmarks with Fio
30.11.2025
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»
Archive
»
2011
»
Issue 5: Pen Te...
»
/
0
K /
s
] [4137 /
0
iops] [eta
00
m:06
s
] In the example, the first job is performing a sequential read, marked as r in square brackets, while Fio hasn't initialized the second job, marked as P
27%
Managing virtual machines
30.11.2025
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»
Archive
»
2012
»
Issue 09: Windo...
»
/sysconfig/network-scripts/ifcfg-eth
0
-e "
s
/
/
/" You need a similar approach with the Udev rules mentioned earlier. In this way, you can also replace the hostname so that it matches the name assigned during
27%
Debugging the Linux kernel with the Qemu emulator
30.11.2025
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»
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»
2012
»
Issue 07: Xen v...
»
. The following command tells the system the hex address of the code segment and the two data segments: add-symbol-file path/hello.ko
0
xd8817000 -
s
.data
0
xd88170e
0
-
s
.bss
0
xd8817294 Now you can set a breakpoint
27%
Workshop: Container virtualization with LXC on Ubuntu 10.04
30.11.2025
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»
Archive
»
2011
»
Issue 6: Perfor...
»
.network.type = veth 04 lxc.network.flags = up 05 lxc.network.link = br
0
06 lxc.network.hwaddr = 08:
00:12
:34:56:78 07 #lxc.network.ipv4 =
0.0.0.0
08 lxc.network.ipv4 = 192.168.1.69 09 lxc.network.name = eth
0
10 lxc
27%
Server virtualization with Citrix XenServer
30.11.2025
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»
Archive
»
2010
»
Issue 2: Backup...
»
processor cores. Depending on the functional scope, the prices are between US$ 1,000 and US$ 5,000, including
12
months of free upgrades, news, and information. For server virtualization newcomers, Citrix
27%
Overview of cloud platforms and appliances
30.11.2025
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»
Archive
»
2010
»
Issue 2: Backup...
»
, Hybrids, Software as a Service (Saa
S
), Platform as a Service (Paa
S
) – the list goes on and on. In this article, we will attempt to peek through the mist of terminology and provide readers
27%
Julia: A new language for technical computing
30.11.2025
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»
Archive
»
2012
»
Issue 10: Traff...
»
.33 164.69
0
.75 rand_mat_stat 3.37 39.34 11.64 54.54 22.07 8.
12
rand_mat_mul 1.
00
1.18
0
.70 1.65 8
26%
Network backup with Burp, Obnam, and Backshift
30.11.2025
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»
Archive
»
2012
»
Issue 10: Traff...
»
can exclude files of a certain size (e.g., those of
0
MB
). The Burp configuration language also provides two size parameters: min_file_size and max_file_size; for example: min_file_size =
0
Mb
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