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91%
Julia: A new language for technical computing
30.11.2025
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Archive
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2012
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Issue 10: Traff...
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.33 164.69 0.75 rand_mat_stat 3.37 39.34 11.64 54.54
22
.07 8.
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rand_mat_mul 1.00 1.18 0.70 1.65 8
91%
I/O benchmarks with Fio
30.11.2025
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2011
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Issue 5: Pen Te...
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the Buffer 01 [global] 02 ioengine=libaio 03 direct=1 04 filename=testfile 05 size=2g 06 bs=4m 07 08 refill_buffers=1 09 10 [write] 11 rw=write
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write_bw_log 13 14 [read] 15 stonewall 16 rw=read 17 write
91%
Monitoring KVM instances with Opsview
30.11.2025
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2012
»
Issue 07: Xen v...
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for the KVM host: Connectivity (LAN) Unix load RAM/Swap load Storage utilization SSH availability (typically on port
22
) Optional extensions: If you use libvirt, you can check
91%
A standard cloud computing API
30.11.2025
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2011
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Issue 6: Perfor...
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total = summary.values.inject(0) { |sum, i| sum += i }
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puts "Found #{total} instances in the following states:" 13 summary.keys.sort.each do |s| 14 printf "%20s %d\n", s, summary[s] 15 end 16 puts
91%
Overview of cloud platforms and appliances
30.11.2025
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2010
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Issue 2: Backup...
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No + + ++ No ++ 67 Strato MultiServer Yes No No No No No + - + No -
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Microsoft Azure No (similar elastic IP
91%
Business continuity for small to medium-sized enterprises
30.11.2025
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2012
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Issue 08: FreeNAS
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minutes between backups These settings create
22
files per day (one full backup and 21 incremental backups) on the NAS. The full backups are easily identifiable by the .spf file extension; incremental
91%
The RADOS object store and Ceph filesystem
30.11.2025
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2012
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Issue 09: Windo...
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/ceph/$name.keyring 04 [mon] 05 mon data = /srv/mon.$id 06 [mds] 07 [osd] 08 osd data = /srv/osd.$id 09 osd journal = /srv/osd.$id.journal 10 osd journal size = 1000 11 [mon.a]
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host = alice 13 mon
90%
Monitoring for small and medium-sized companies compared
30.11.2025
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2012
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Issue 07: Xen v...
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-ons. This explains why there have been more than 3 million new Nagios installations worldwide in the past
12
months. This is why Nagios is the industrial standard for monitoring today. … Nagios has a much larger
90%
Introduction to behavior-driven monitoring
30.11.2025
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2011
»
Issue 3: Are yo...
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/usr/lib64/ruby/1.8/logger.rb:487:in `initialize'
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/usr/lib64/ruby/1.8/logger.rb:263:in `new' 13 /usr/lib64/ruby/1.8/logger.rb:263:in `initialize' 14 /usr/lib/nagios
90%
High-availability workshop: GFS with DRBD and Pacemaker
30.11.2025
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2012
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Issue 07: Xen v...
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