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15%
Speed up your MySQL database
11.02.2016
Home »  Archive  »  2016  »  Issue 31: Tunin...  » 
Lead Image © Mikhail Dudarev, 123RF.com
there are normally two. The size of these two files influences the speed of write access to InnoDB. This value was far too small for many years (5MB). The new default values in MySQL  5.6 take this into account
15%
Error-correcting code memory keeps single-bit errors at bay
14.11.2013
Home »  Archive  »  2013  »  Issue 17: Cloud...  » 
Lead Image © Igor Stevanovic, 123RF.com
/devices/system/edac/mc/mc0/csrow0/size_mb 8192 login2$ more /sys/devices/system/edac/mc/mc0/csrow0/ue_count 0 Some attribute files in /sys/devices/system/edac/mc/mc0/ can be very useful (Listing 6). As with the csrow
15%
Warewulf Cluster Manager – Completing the Environment
20.06.2012
Home »  HPC  »  Articles  » 
/shm 10.1.0.250:/var/chroots/sl6.2 53G 29G 22G 57% /vnfs 10.1.0.250:/home 53G 29G 22G 57% /home 10.1.0.250:/opt 53G 29G 22G 57% /opt 10.1.0.250:/usr
15%
Process, Network, and Disk Metrics
26.02.2014
Home »  HPC  »  Articles  » 
      total packets:                 sent:  12,243,355   recv:  1,467,914    bytes sent:                   total:  16.90 G      per-sec:  3.22 M/s    bytes recv:                   total:  114.04 M
15%
Network analysis with the Bro Network Security Monitor
05.12.2014
Home »  Archive  »  2014  »  Issue 24: Visua...  » 
Lead Image © Aleksey Mnogosmyslov, 123RF.com
.519354 pkts=6 kpps=0.0 kbytes=0 mbps=0.0 nic_pkts=16 nic_drops=0 u=2 t=2 i=0 o=0 nonip=2 1415510244.519597 pkts=6 kpps=0.0 kbytes=0 mbps=0.0 nic_pkts=22 nic_drops=0 u=2 t=2 i=0 o=0 nonip=2 1415510247
15%
CPU affinity in OpenMP and MPI applications
03.02.2022
Home »  Archive  »  2022  »  Issue 67: syst...  » 
Lead Image © podfoto, 123RF.com
,32 1,33 2,34 3,35 4,36 5,37 6,38 7,39 8,40 9,41 10,42 11,43 12,44 13,45 14,46 15,47 16,48 17,49 18,50 19,51 20,52 21,53 22,54 23,55 24,56 25,57 26,58 27,59 28,60 29,61 30,62 31,63 The lstopo tool
15%
Preload Trick
11.05.2021
Home »  HPC  »  Articles  » 
, elapsed Time = %9.6f, GFlops = %9.6f ", ...                 N, elapsedTime, gFlops) );   endfor Listing 2: Double-Precision Square Matrix Multiply # Example DGEMM   for N = [2, 4, 8, 16
14%
Processor and Memory Affinity Tools
14.09.2021
Home »  HPC  »  Articles  » 
 $(find /sys/devices/system/cpu -regex ".*cpu[0-9]+/topology/thread_siblings_list") | sort -n | uniq 0,32 1,33 2,34 3,35 4,36 5,37 6,38 7,39 8,40 9,41 10,42 11,43 12,44 13,45 14,46 15,47 16,48 17,49 18,50 19,51 20,52 21,53 22,54 23,55 24,56 25
14%
Ubuntu Server 15.10
03.12.2015
Home »  Archive  »  2015  »  Issue 30: OpenD...  » 
(release 12) cloud. Autopilot fully integrates the OpenDaylight SDN controller and gives you the choice of Swift or Ceph for object storage. Automated scale-out revises the cloud controller services
14%
Combining Directories on a Single Mountpoint
19.05.2014
Home »  HPC  »  Articles  » 
the 2010 time frame. This corresponds to about version 2.2 of SSHFS, which is from 2008. SSHFS is now up to version 2.5, which was released on January 14, 2014; however, testing I’ve done hasn’t revealed any

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