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20%
The fine art of allocating memory
30.11.2025
Home »  Archive  »  2012  »  Issue 10: Traff...  » 
presence provides the system with a last chance for a soft landing before more drastic action is taken. This month, I examine the darker side of the picture: Swap hits 100%, and hard out-of-memory errors
20%
MPI Apps with Singularity and Docker
18.03.2020
Home »  HPC  »  Articles  » 
.334626E-02       20  0.743993      0.744333      0.301099E-02       21  0.744667      0.744967      0.271109E-02       22  0.745261      0.745526      0.244257E-02       23  0.745787      0.746022      0
20%
Get the best out of your bandwidth with tc
30.11.2025
Home »  Archive  »  2012  »  Issue 10: Traff...  » 
© Russell Shively, 123RF.com
is as follows: tc filter add dev $DEV protocol ip parent 1:0 prio 100 u32 match ip $DIR 12.34.56.78 flowid 1:12 You'll be glad to know the filter's config is much simpler than the classes or the qdisc
19%
Endlessh and tc tarpits slow down attackers
02.02.2021
Home »  Archive  »  2021  »  Issue 61: Secur...  » 
Lead Image © Yewkeo, 123RF.com
, so you can continue. Listing 7 Starting sshd $ systemctl start sshd $ lsof -i :22 COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME sshd 5122 root 3u IPv4 62113 0t0
19%
Open source customer relationship management software
05.02.2019
Home »  Archive  »  2019  »  Issue 49: Anato...  » 
Lead Image © Martina Berg, Fotolia.com
SalesAgility forked the SugarCRM project back in 2013, with a bold vision to deliver an enterprise-ready, 100 percent open source customer relationship management (CRM) system when the "commercial
19%
Measuring the performance of code
04.08.2020
Home »  Archive  »  2020  »  Issue 58: Graph...  » 
Lead Image © Lucy Baldwin, 123RF.com
(t) (sec):\t%5.2e ± %4.02f%%,\tloop body %5.2e\n", i, mean, 100.0*rsdev, mean/iterations); 67 } 68 69 return EXIT_SUCCESS; 70 } on the DigitalOcean droplet I have been using to write this column
19%
Read-only File Compression with SquashFS
14.06.2017
Home »  HPC  »  Articles  » 
 on /home/laytonjb/squashfs/20170502.sqsh, block size 131072. [================================================-] 2904/2904 100%   Exportable Squashfs 4.0 filesystem, gzip compressed, data block size 131072         compressed
19%
Read-only file compression with SquashFS
14.08.2017
Home »  Archive  »  2017  »  Issue 40: Lean...  » 
Lead Image © modella, 123RF.com
/laytonjb/squashfs/20170502.sqsh Parallel mksquashfs: Using 4 processors Creating 4.0 filesystem on /home/laytonjb/squashfs/20170502.sqsh, block size 131072. [================================================-] 2904/2904 100
19%
Emergency Fix for OpenSSL
07.07.2015
Home »  News  » 
 
a “single security issue classified as high severity.” The security problem apparently does not affect OpenSSL versions 1.0.0 or 0.9.8, but users of other OpenSSL versions should prepare to upgrade as soon
19%
Posteo, Mailbox.org, Tutanota, and ProtonMail compared
10.04.2015
Home »  Archive  »  2015  »  Issue 26: OpenS...  » 
Lead Image © Kirill Bodrov, 123RF.com
, and the latest email in the Inbox. As with Posteo, the basic Mailbox.org service costs EUR1 per month, which includes 2GB of storage, three aliases, and 100MB of storage for the office solution

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