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34%
When I/O workloads don't perform
02.08.2021
Home »  Archive  »  2021  »  Issue 64: Bare...  » 
Lead Image © Viacheslav Iakobchuk, 123RF.com
://github.com/brendangregg/FlameGraph.git Cloning into 'FlameGraph'... remote: Enumerating objects: 1067, done. remote: Total 1067 (delta 0), reused 0 (delta 0), pack-reused 1067 Receiving objects: 100% (1067/1067), 1.87 MiB | 6.67 MiB/s, done
34%
Monitoring Storage with iostat
25.02.2013
Home »  HPC  »  Articles  » 
on the options you chose, but some sample output is shown in Listing 1. Listing 1: Sample iostat Output [laytonj@home8 IOSTAT]$ iostat -c -d -x -t -m /dev/md1 2 100 Linux 2.6.18-308.16.1.el5.centos.plus (home8
34%
Server virtualization with Citrix XenServer
04.08.2011
Home »  CloudAge  »  Articles  » 
 
In the summer of 2007, Citrix invested around US$ 500 million to acquire Xensource, the developers of the free Xen hypervisor. Xensource and its free hypervisor form the basis for what is probably ... Version 5.6 of Citrix XenServer is a feature-stripped version of the virtualization product and is available free, in addition to the commercial Advanced, Enterprise, and Platinum editions.
34%
Assess USB performance while exploring storage caching
13.12.2018
Home »  Archive  »  2018  »  Issue 48: Secur...  » 
Lead Image © Lucy Baldwin, 123RF.com
of the data was still residing in the kernel's page cache [6], waiting eventually to be persisted to disk. This resulted in an impressive (and impossible for the hardware) 885MBps transfer rate, but not to disk
34%
Rethinking RAID (on Linux)
16.03.2021
Home »  HPC  »  Articles  » 
B/s-1404kB/s), io=80.5MiB (84.4MB), run=60145-60145msec Disk stats (read/write):     md0: ios=100/20614, merge=0/0, ticks=0/0, in_queue=0, util=0.00%, aggrios=103/20776, aggrmerge=0/0, aggrticks=12
34%
Posteo, Mailbox.org, Tutanota, and ProtonMail compared
10.04.2015
Home »  Archive  »  2015  »  Issue 26: OpenS...  » 
Lead Image © Kirill Bodrov, 123RF.com
.org Tutanota ProtonMail Mailbox from EUR1 Yes/2GB Yes/2GB Free/1GB Free/500MB Storage space expansion Yes Yes Yes Currently
34%
Your own AWS-compatible cloud with Eucalyptus
14.11.2013
Home »  Archive  »  2013  »  Issue 17: Cloud...  » 
Lead Image © Author, 123RF.com
with the IP addresses 192.168.100.11 and 192.168.100.12. In the boot menu, select Install CentOS 6 with Eucalyptus Node Controller . You can decline the offer to check the installation medium by pressing Skip
33%
Network backups with Amanda
05.12.2016
Home »  Archive  »  2016  »  Issue 36: Autom...  » 
Lead Image © Tommaso Lizzul, 123RF.com
. The next section sets the type and parameters of the tapes or the properties of the backup device. In Listing 1, each volume can hold 100MB of data. In the example, a maximum of 100MB are written to each
33%
Logical Bombs for Fun and Benchmarking
06.10.2019
Home »  Archive  »  2019  »  Issue 53: Secur...  » 
Lead Image © Lucy Baldwin, 123RF.com
such invocation is essentially a pure processor workload that will maximally use up to one CPU core while taking up close to zero I/O or memory resources. The top [3] command displays a perfect 1.00 load average
33%
The Road to End-of-Scale
19.06.2013
Home »  HPC  »  Articles  » 
within 2µs of each other, you would be limited to 8,500m3. With Titan a starting point, and assuming Pollack’s Rule (doubling the performance two times), you should be able to achieve 100TFLOPS/m3

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