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13%
Tuning loops – from loop unrolling to Duff's device
28.07.2025
Home »  Archive  »  2025  »  Issue 88: 5 Net...  » 
. The highly tuned Assembler subroutines so crucial to the demoscene art [12] and interactive shoot-em-up videogames of the 1990s were handcrafted by iconic programmers such as Doom's John Carmack [13] or Quake
13%
Data acquisition with shell tools
30.11.2025
Home »  Archive  »  2010  »  Issue 2: Backup...  » 
Dmitriy Syechin, 123RF
while true 11 do 12 echo -n "Text entry: ";read text 13 echo -n "Numeric entry: ";read number 14 echo -n "Save (s) End (e) ";read we 15 if [ "$we" = "s" ]; 16 then 17 echo "Insert into demo values
13%
SSH Administration – Windows in a Unix World
30.11.2025
Home »  Archive  »  2010  »  Issue 0: Active...  » 
Gino Santa Maria, 123RF.com
to a remote host, allow this with the command $ xhost + and then export your display to the remote host on which you want to view the applications. $ export DISPLAY=hostname:0.0 On the system
13%
Get the best out of your bandwidth with tc
30.11.2025
Home »  Archive  »  2012  »  Issue 10: Traff...  » 
© Russell Shively, 123RF.com
later on, but in the meantime, the following is a class configuration line: tc class add dev $DEV parent 1:1 classid 1:12 cbq bandwidth $BAND rate 25Mbit allot 1514 cell 8 weight 2500Kbit prio 3 maxburst
13%
I/O benchmarks with Fio
30.11.2025
Home »  Archive  »  2011  »  Issue 5: Pen Te...  » 
© Kheng Ho Toh, 123RF.com
/0K /s] [4137 /0 iops] [eta 00m:06s] 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
13%
Monitoring virtualization environments with Nagios and Icinga
30.11.2025
Home »  Archive  »  2010  »  Issue 2: Backup...  » 
Sergej Khackimullin, 123RF
CPU PROCESS/NLWP # 173 daemon 17M 11M sleep 59 0 3:18:42 0.2% rcapd/1 # 17676 apl 6916K 3468K cpu4 59 0 0:00:00 0.1% prstat/1 # ... # ZONEID NPROC SWAP RSS MEMORY TIME
13%
Workshop: Container virtualization with LXC on Ubuntu 10.04
30.11.2025
Home »  Archive  »  2011  »  Issue 6: Perfor...  » 
© Tormod Rossavik, 123RF.com
.network.type = veth 04 lxc.network.flags = up 05 lxc.network.link = br0 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 = eth0 10 lxc
13%
Connecting dissimilar IPsec implementations
30.11.2025
Home »  Archive  »  2011  »  Issue 4: Secure...  » 
© Yuri Arcurs, 123RF.com
endpoint1=192.168.80.0/24 07 endpoint2=192.168.2.0/24 08 action=requireinrequireout 09 auth1=computerpsk 10 auth1psk="test123" 11 qmsecmethods=esp:sha1-3des 12 qmpfs=dhgroup2 If you need
13%
Igel thin clients
30.11.2025
Home »  Archive  »  2010  »  Issue 2: Backup...  » 
Dana Bartekoske, 123RF
is supplied free of charge to customers, is currently available as version 3.06 for Windows and Linux. Figure 1: The Igel thin client UD3 series (source: Igel
13%
The logging module in Python
30.11.2025
Home »  Archive  »  2012  »  Issue 08: FreeNAS  » 
© svl861, 123RF.com
. In Python 2.3, the logging module [3] was finally added to the standard library, so assuming you have Python in place, you have nothing to install. To use the module, import it at the start of a script, like

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