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26%
Tuning I/O Patterns in C
31.07.2013
Home »  HPC  »  Articles  » 
The language you choose to use affects I/O patterns and performance. We track a simple write I/O pattern with C and look at how to improve performance. ... still only uses a single write() function. Next, I’ll try 500 iterations (Figure 3C). Figure 3C: Strace excerpt with C one-by-one code; 500 iterations ... The language you choose to use affects I/O patterns and performance. We track a simple write I/O pattern with C and look at how to improve performance. ... Tuning I/O Patterns in C
26%
News for Admins
05.02.2023
Home »  Archive  »  2023  »  Issue 73: Datab...  » 
 
of its useful life," and NIST recommends that IT professionals replace it with newer, more secure options. "We recommend that anyone relying on SHA-1 for security migrate to SHA-2 or SHA-3 as soon
26%
Review: Accelerator card by OCZ for ESX server
16.05.2013
Home »  Archive  »  2013  »  Issue 14: Samba 4  » 
© gortan123, 123RF.com
on the iSCSI network, reaching a total of 500MBps. At 500MBps, the going would start to get tough, even for SATA 3.0 (and even older versions running at 150 and 300MBps would have long since given up
26%
Whitepaper: AMD “Bulldozer” Architecture
10.11.2011
Home »  HPC  »  Vendors  »  AMD  » 
 
while an AMD Opteron™ processor model 6276 (16-core 2.3GHz) consumes only 6.4W in the active idle C1E power state with new C6 power gating employed. System configuration: "Drachma" reference design kit
26%
AlmaLinux and HPC
31.01.2024
Home »  HPC  »  Articles  » 
Information Process Standard (FIPS) 140-3 validation, which means AlmaLinux 9 is using approved algorithms for encryption, hashing, assigning, and so on. AlmaLinux’s move to ABI compatibility has freed it from
26%
The weak spot of SBCs
04.04.2023
Home »  Archive  »  2023  »  Issue 74: The F...  » 
Lead Image © Lucy Baldwin, 123RF.com
(a SanDisk C10, U1, A1 microSDHC I with 16GB of capacity) shows the card handily exceeding its specified minimum limits (Figure 3). Testing demonstrated approximately 45MBps of throughput with a read
26%
Writing SELinux modules
05.12.2016
Home »  Archive  »  2016  »  Issue 36: Autom...  » 
Lead Image © Amy Walters, 123RF.com
policy modules that are available and active on the system. The file is stored below /etc/selinux: # ls -lh /etc/selinux/targeted/policy/total 3.6M -rw-r--r--. 1 root root 3.6M Mar 3 13:28 policy.29
26%
Denial of service defense
26.03.2025
Home »  Archive  »  2025  »  Issue 86: Data...  » 
Lead Image © Russell Shively, 123RF.com
a full HTTP request directly to the server, Slowloris begins a request and then continuously, but very slowly, adds headers without ever completing the request; (3) the server fields all of the header data
26%
Tuning I/O Patterns in Python
18.12.2013
Home »  HPC  »  Articles  » 
(One-by-One) 1 #include 2 3 /* Our structure */ 4 struct rec 5 { 6 int x,y,z; 7 float value; 8 }; 9 10 int main() 11 { 12 int counter; 13 struct rec my_record; 14 int counter_limit; 15
26%
pyamgx – Accelerated Python Library
16.05.2018
Home »  HPC  »  Articles  » 
and quickly determine whether an application solves a problem. Given that it is an interpreted language, it is almost always slower than a compiled language such as C/C++ or Fortran. When you want your

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