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82%
Graphite: Collect and Visualize Numeric Data
30.07.2014
Home »  HPC  »  Articles  » 
/bin/perl   use Time::HiRes qw(gettimeofday tv_interval); use Net::Statsd;   $Net::Statsd::HOST = 'localhost';    # Default $Net::Statsd::PORT = 8125;           # Default   my $t0 = [gettimeofday];   my($one, $two, $three) = map { $_ x
82%
Visualizing time series data
21.08.2014
Home »  Archive  »  2014  »  Issue 22: OpenS...  » 
Lead Image © Maxim Kazmin, 123RF.com
_interval); 04 use Net::Statsd; 05 06 $Net::Statsd::HOST = 'localhost'; # Default 07 $Net::Statsd::PORT = 8125; # Default 08 09 my $t0 = [gettimeofday]; 10 11 my($one, $two, $three) = map { $_ x 4096
81%
Creating and evaluating kernel crash dumps
31.10.2025
Home »  Archive  »  2012  »  Issue 11: Cloud...  » 
© Giuseppe Ramos, 123RF.com
], where X is the size of the reserved area in megabytes and Y specifies the start address. If you omit the second parameter or set it to 0M, the system automatically selects an appropriate location
81%
I/O Profiling at the Block Level
27.08.2014
Home »  HPC  »  Articles  » 
 Zipfian Theta Range: 0.0348-1.4015 (est. 0.5043). Trace_files: 0 Stats IOPS: "4K WRITE" 100.00% (223855533 IO's) Stats BW: "4K WRITE" 100.00% (853.94 GiB) This heatmap can help you 'see' hot spots
81%
New features in MariaDB 10.3
05.02.2019
Home »  Archive  »  2019  »  Issue 49: Anato...  » 
Lead Image by Adarsh Kummur on Unsplash
, revenue DECIMAL(11, 2) 05 , customer_class CHAR(1) 06 ); 07 08 SQL> INSERT INTO customer 09 VALUES (1, 2016, 100.0), (2, 2016, 0.0), (3, 2016, 999.99); 10 SQL> INSERT INTO customer 11 VALUES (1, 2017, 500.0
81%
Secure remote access and web applications with two-factor authentication
16.05.2013
Home »  Archive  »  2013  »  Issue 14: Samba 4  » 
© maigi, 123rf.com
, one-time passwords, or both. Certificate-based two-factor authentication typically uses digital PKI certificates based on the X.509 standard. These are typically stored on a hardware certificate storage
81%
S3QL filesystem for cloud backups
09.01.2013
Home »  Archive  »  2013  »  Issue 18: New W...  » 
Lead Image © stylephotographs, 123RF.com
lost+found 04 4 drwxr-xr-x. 3 root root 4096 Nov 10 10:00 .. 05 4 -rw-r--r-- 1 root root 294 Nov 10 10:07 s3ql_passphrase 06 4 -rw-r--r-- 1 root root 243 Nov 10 10:07 s3ql_seq_no_1 07 4 -rw
80%
Storage across the network with iSCSI and Synology DiskStation Manager
04.12.2024
Home »  Archive  »  2024  »  Issue 84: Non-R...  » 
Lead Image © Vladimir Nenov, 123RF.com
Attaching an iSCSI Device $ uname -a Linux DANSBOX 6.8.0-35-generic #35-Ubuntu SMP PREEMPT_DYNAMIC Mon May 20 15:51:52 UTC 2024 x86_64 x86_64 x86_64 GNU/Linux $ lsblk NAME MAJ:MIN RM SIZE RO TYPE
80%
Top Top-Like Tools
07.10.2014
Home »  Archive  »  2014  »  Issue 23: 10 Ti...  » 
. The second number is percent CPU load from the system (0.3%sy), and the next is percentage of jobs that are "nice" [2] (0.0%ni). After that, Top lists percent overall CPU time idle (86.3%id; four real cores
79%
GNU Parallel: Multicore at the Command Line with GNU Parallel
04.11.2011
Home »  HPC  »  Articles  » 
eaa6238ad5ff00  ‑ One reason to use Parallel in this way is so that output of each command is grouped such that multiple commands do not mix their output streams together. For more information, see

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