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Creation time
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Article (Print)
(115)
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(1)
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13%
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
13%
Enterprise communication with IRC
30.11.2025
Home
»
Archive
»
2012
»
Issue 10: Traff...
»
;
12
13 /* sendq: servers need a higher sendq as they send more data */ 14 sendq=2 megabytes; 15 }; Additionally, ircd.conf lacks a block that allows connections to other servers ... Running an IRC server might seem almost anachronistic, but the classic service from the early 1990
s
offers a huge amount of functionality with very little in the line of resources. In the daily grind
12%
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
12%
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
12%
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
12%
ARP cache poisoning and packet sniffing
30.11.2025
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»
Archive
»
2011
»
Issue 6: Perfor...
»
Destination MAC address Listing 1 Nemesis arp Packets 01 $ while true 02 > do 03 > sudo nemesis arp -v -r -d eth
0
-
S
192.168.1.2 -D 192.168.1.133 -h
00:22
:6E:71:04:BB -m
00:0
C:29:B2
12%
RAM revealed
30.11.2025
Home
»
Archive
»
2011
»
Issue 6: Perfor...
»
GKF8
S
16 DDR3, Registered, ECC, 4 rank 8.710
0
.54 AL24M72E4BKH9
S
8 DDR3, Registered, ECC, 2 rank 6.132
0
.77 AL
12
M72B8BKH9
S
12%
Managing FOSS applications on AIX
27.05.2025
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»
Archive
»
2025
»
Issue 87: Light...
»
server, you can search the web server logfile, access_log, for the HTTP GET request for the zoo RPM file from the client: # grep zoo /var/log/httpd/access_log 10.8.
12
.141 - - [11/Oct/2024:
00
:14:14 -0500
12%
Managing virtual machines
30.11.2025
Home
»
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
12%
I/O benchmarks with Fio
30.11.2025
Home
»
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
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