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%200mb%3%A9n Llorente 12
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100%
RAM revealed
30.11.2025
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»
Archive
»
2011
»
Issue 6: Perfor...
»
chips with 128Mx8 organization (1-Gb chips) 5.132 2.57 AL28M72
A
8BJH
9
S 1 DDR
3
, Registered, ECC, 1 rank 2.241 2.24 AQ
12
M72E8BKH
9
S 4
98%
Monitor your nodes with collectl
30.11.2025
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»
Archive
»
2012
»
Issue 09: Windo...
»
25-E SSD [
9
] courtesy of Intel is mounted as /dev/sdd ext4 filesystem with the default options Open MPI [10] v1.5.4 NAS Parallel Benchmarks
3.3
.1-MPI [11] Iozone [
12
] Daemon ...
9
94%
Storage system with OpenSolaris and Comstar
30.11.2025
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»
Archive
»
2010
»
Issue 0: Active...
»
that follow. The iSCSI client (or initiator in iSCSI-speak) in our lab is Ubuntu
9
.10. Listing
3
shows the steps to mount a Comstar block device with the Linux Open iSCSI initiator. Listing
3
Block
92%
I/O benchmarks with Fio
30.11.2025
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»
Archive
»
2011
»
Issue 5: Pen Te...
»
tests and take some of the load off the SSD with the fstrim command from a recent util-linux package [
9
]. The workload from Listing
3
, which measures the IOPS with a variable block size between 2Kb
92%
The fine art of allocating memory
30.11.2025
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»
2012
»
Issue 10: Traff...
»
); i+= 4096) newblock[i] = 'Y';
12
printf("Allocated %d
MB\n
", allocation); 13 } 14 } Things are more interesting when memory is being used. Uncommenting line 11 does just that. The OOM
92%
Network backup with Burp, Obnam, and Backshift
30.11.2025
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»
2012
»
Issue 10: Traff...
»
existing backups, enter: burp -
a
l -b a Of course, more complex queries are also possible. For example, burp -
a
l -b
3
-r
lists all of the files in backup
3
that match the "regular
91%
Beyond monitoring: Mathematical load simulation in Perl
30.11.2025
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»
2011
»
Issue 6: Perfor...
»
--------- ------ ---- ----- ----
12
Throughput Cashier Customers 0.7500 Cust/Sec 13 Utilization Cashier Customers 75.0000 Percent 14 Queue Length Cashier Customers
3
.0000 Cust 15 Residence Time Cashier Customers 4.0000 Sec 16
N
Sws
91%
An IT nomad's diary
30.11.2025
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»
2011
»
Issue 5: Pen Te...
»
is all it takes to create your own application, just like for the domain (Listing
3
). Listing
3
Creating the Application 01 # rhc-create-app -
a
spaceuploader -t perl-5.10 -l tscherf
91%
Workshop: Container virtualization with LXC on Ubuntu 10.04
30.11.2025
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»
2011
»
Issue 6: Perfor...
»
and modifying the IP address in line 8. The line lxc-create -
n
guest -f /lxc/conf.guest Listing
3
Container Configuration: conf.guest 01 lxc.utsname = guest 02 lxc.tty = 4 03 lxc
90%
Script utilities in depth: grep, awk, and sed
30.11.2025
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2011
»
Issue 4: Secure...
»
, appearing in alphabetical order but allowing intervening letters, you can use the search expression: "
a
.*e.*i.*o.*u" This would match lines 1, 2, and
3
. If you want lines containing all five vowels in order
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