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14%
A ptrace-based tracing mechanism for syscalls
06.10.2022
Home »  Archive  »  2022  »  Issue 71: Kuber...  » 
Photo by Nadjib BR on Unsplash
. According to benchmarks with only one tracee, the additional overhead in terms of execution time for syscalls (caused by the libiotrace syscall tracing implementation) is approximately 1,400%. This massive
14%
Desktop Supercomputers: Past, Present, and Future
17.03.2021
Home »  HPC  »  Articles  » 
of 1,800W (120 × 15 = 1,800), and a 20A circuit has a capability of 2,400W. The US National Electrical Code (NEC) rules and best practices state that the design wattage for typical residents is 80
14%
What's your status (page)?
28.11.2023
Home »  Archive  »  2023  »  Issue 78: Domai...  » 
Lead Image © Tatiana Venkova, 123RF.com
_http_status_healthy_below = 400 28 poll_delay_dead = 30 29 poll_delay_sick = 10 30 push_delay_dead = 20 31 push_system_cpu_sick_above = 0.90 32 push_system_ram_sick_above = 0.90 33 script_interval = 300 34 local_delay_dead = 40 35
14%
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
13%
Routing with Quagga
19.02.2013
Home »  Articles  » 
to the networks of all other autonomous systems. Thus, the routing tables are correspondingly large (some 400,000 entries in April 2012.) In contrast to OSPF, admins must configure the connection between two
13%
Speed up your MySQL database
11.02.2016
Home »  Archive  »  2016  »  Issue 31: Tunin...  » 
Lead Image © Mikhail Dudarev, 123RF.com
your tuning actions. Are you looking for a shorter response time or more throughput? One objective could be, say: "Action X takes 3.5 seconds to complete after clicking – in future, we want to be done
13%
Greylisting with Postgrey
22.06.2012
Home »  Articles  » 
 
: Qmail Delivery Retry Events Delivery Attempt Seconds D-HH:MM:SS 1 0 0-00:00:00 2 400 0-00:06:40 3 1600 0-00:26:40 4
13%
Persistent Memory
14.01.2016
Home »  HPC  »  Articles  » 
3700 IOPS: 15,900 Optane IOPS: 70,300 (4.42x) P3700 latency: 58µ Optane latency: 9µ (6.44x) Test 2 P3700 IOPS: 13,400 Optane IOPS: 95,600 (7.13x) P3700
13%
How persistent memory will change computing
03.12.2015
Home »  Archive  »  2015  »  Issue 30: OpenD...  » 
Lead Image © rangizzz, 123RF.com
Benchmarks Test 1 P3700 IOPS: 15,900 Optane IOPS: 70,300 (4.42x) P3700 latency: 58µ Optane latency: 9µ (6.44x) Test 2 P3700 IOPS: 13,400 Optane IOPS: 95
13%
New features in MariaDB 10.3
05.02.2019
Home »  Archive  »  2019  »  Issue 49: Anato...  » 
Lead Image by Adarsh Kummur on Unsplash
SQL> SELECT * FROM marks; 11 12 SQL> DELIMITER // 13 14 SQL> CREATE AGGREGATE FUNCTION agg_count(x INT) RETURNS INT 15 BEGIN 16 DECLARE count_students INT DEFAULT 0; 17 DECLARE CONTINUE HANDLER

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