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When do I really need to use atomic instead of bool? [duplicate]
...will work in a similar way for bool and atomic<bool>. But multi-core CPU and missed memory barrier is something that will happen with nearly 100% chance for any modern application and hardware
– Ezh
Sep 2 '18 at 9:53
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Are tuples more efficient than lists in Python?
...bsolutely does not mean the same operations happen at the C (and therefore cpu) level. Try creating a class ListLike with a __getitem__ that does something horribly slow, then disassemble x = ListLike((1, 2, 3, 4, 5)); y = x[2]. The bytecode will be more like the tuple example above than the list ex...
What is SaaS, PaaS and IaaS? With examples
...Many service providers also offer the flexibility to increase/decrease the CPU power depending upon the traffic loads giving developers cost effective and easy & effortless management.
SAAS (Software as a service) is more popular among with consumers, who bother about using the application such ...
How can I measure the speed of code written in PHP? [closed]
...e function that is slowing everything down ^^
Note that Xdebug counts the CPU time spent by PHP ; when PHP is waiting for an answer from a Database (for instance), it is not working ; only waiting. So Xdebug will think the DB request doesn't take much time !
This should be profiled on the SQL serve...
Condition within JOIN or WHERE
...n think of 4 queries in the last week with very different execution plans, CPU times, and logical reads when I moved where predicates to the join.
– marr75
Jun 19 '09 at 16:58
2
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How often should you use git-gc?
... the user does not know, naturally they complain about 'gc --auto' wasting CPU.
Daemonized gc now saves stderr to $GIT_DIR/gc.log.
Following gc --auto will not run and gc.log printed out until the user removes gc.log.
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Is it possible to read from a InputStream with a timeout?
... maxTimeMillis && bufferOffset < b.length) {" saved me a ton of CPU overhead.
– Logic1
May 7 '16 at 7:14
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How does `scp` differ from `rsync`?
... encryption also has a major impact on your transfer speed, as well as the CPU overhead. (My experience is that rsync can be significantly faster than scp.)
Check out this post for when rsync has encryption on.
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What are the differences between json and simplejson Python modules?
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On my Win7 PC (i7 CPU), json (CPython 3.5.0) is 68%|45% faster on simple|complex dumps and 35%|17% on simple|complex loads w.r.t. simplejson v3.8.0 with C speedups using your benchmark code. Therefore, I would not use simplejson anymore with t...
How to break out of a loop from inside a switch?
... asked me to make the main loop let other threads (or processes) have some CPU time, two solutions come to mind:
Option #1
Readily insert the pause:
while( isValidState() ) {
execute();
sleep();
}
Option #2
Override execute:
void execute() {
super->execute();
sleep();
}
This code...