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  • Article (Print) (83)
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80%
Galera Cluster for MySQL
30.11.2025
Home »  Archive  »  2012  »  Issue 10: Traff...  » 
© Noel Powell, fotolia.com
queries. This is one reason why a Galera setup with only two nodes is not recommended. An SST can be accomplished with mysqldump, rsync, or XtraBackup (2.0 and up). With a very large data volume (as
79%
I/O benchmarks with Fio
30.11.2025
Home »  Archive  »  2011  »  Issue 5: Pen Te...  » 
© Kheng Ho Toh, 123RF.com
creates a 256MB file in the current directory along with process for the job. This process reads complete file content in random order. Fio records the areas that have already been read and reads each area
79%
Strategies for routing voice calls around a firewall
30.11.2025
Home »  Archive  »  2010  »  Issue 0: Active...  » 
gnohz, 123RF.com
/UDP 20.22.24.26:5060; 03 Via: SIP/2.0/UDP 192.168.1.10:5060; 04 received=18.17.16.15:25588;branch=z9hG4bKnashds8 05 Record-Route: 22.24.26;lr> 06 Max-Forwards: 70 07 To: Bob 0
79%
RAM revealed
30.11.2025
Home »  Archive  »  2011  »  Issue 6: Perfor...  » 
© KrishnaKumar Sivaraman, 123RF.com
: In LR-DIMMs, all of the signal lines (including the data) run through an intermediate chip; this reduces the electrical load on the memory controller. LR-DIMMs have an Isolation Memory Buffer (iMB
79%
VMware Server 2.0 on recent Linux distributions
30.11.2025
Home »  Archive  »  2011  »  Issue 3: Are yo...  » 
Dmitry Tsvetkov, 123RF.com
an application happens to fail. In this article, I will look at a practical example in which VMware Server 2.0 refused to cooperate after the administrator updated the underlying operating system from Fedora 13 ... VMware Server 2.0 on recent Linux distributions
78%
Cgroups for resource management in Linux
30.11.2025
Home »  Archive  »  2011  »  Issue 6: Perfor...  » 
© Photographer, 123RF.com
cgroup, which has no restrictions. You can test this by sending a SIGUSR1 to the process: # kill -USR1 $pid 578804+0 records in 578804+0 records out 296347648 bytes (296 MB) copied, 7.00803 s, 42.3 MB
78%
The fine art of allocating memory
30.11.2025
Home »  Archive  »  2012  »  Issue 10: Traff...  » 
irrespective of actual system capacity, because the memory is only being allocated, not used. It will then run into the limits of process address space, hitting a wall at 3056MB of allocation; the maximum
77%
An IT nomad's daily diary
30.11.2025
Home »  Archive  »  2011  »  Issue 6: Perfor...  » 
© Kateryna Pruchkovska, 123RF.com
","stage","app","gateway","eth0-ip","eth0-mask","eth1-mac","eth1-ip","eth1-mask" ] 19 system_dict = {} 20 21 f = open(cblr_systems, "r") 22 for line in f: 23 if line.startswith("#"): 24 continue 25 system
77%
Touring the top Knoppix debugging and rescue tools
30.11.2025
Home »  Archive  »  2010  »  Issue 0: Active...  » 
Rafal Olechowski, 123RF.com
: 1487680 0 IO-APIC-fasteoi uhci_hcd:usb3 14 22: 22998855 0 IO-APIC-fasteoi psb@pci:0000:00:02.0 15 23: 3084145 0 IO-APIC-fasteoi hda_intel 16 24: 1 0 ... 0
77%
A standard cloud computing API
30.11.2025
Home »  Archive  »  2011  »  Issue 6: Perfor...  » 
another could allow the user to set up memory of between 1 and 8GB in increments of 512MB. The Deltacloud API bundles all these possibilities into hardware profiles, which means the clients are provided

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