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Context switches much slower in new linux kernels
...utex
libpthread condition variable
plain old Unix signals
I had to add
#include <stdint.h>
in order to compile, which I did with this command
g++ -O3 -o condvar-perf condvar-perf.cpp -lpthread -lrt
On kernel 2.6.32
$ ./condvar-perf 1000000
NPTL
mutex elapsed: 29085 ...
Why does Twitter Bootstrap Use Pixels for Font Size?
...ots more information about Bootstrap V3 available in the pull request here including the following from Mark Otto:
We explored the use of rem units over pixels, but found little benefit
to offset the implications of their use. IE8 would still need a pixel
fallback, and that's a lot of duplicate li...
What does multicore assembly language look like?
...here is no super simple way to do such sleeps precisely.
Possible methods include:
PIT (used in my example)
HPET
calibrate the time of a busy loop with the above, and use it instead
Related: How to display a number on the screen and and sleep for one second with DOS x86 assembly?
I think the in...
What is INSTALL_PARSE_FAILED_NO_CERTIFICATES error?
...own here:
If only 7.0 targets are anticipated, then there is no need to include the V1 signature.
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Unable to create/open lock file: /data/mongod.lock errno:13 Permission denied
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How can I get a user's media from Instagram without authenticating as a user?
...ost recent media of a user using the following API without authentication (including the description, likes, comments count).
https://www.instagram.com/apple/?__a=1
E.g.
https://www.instagram.com/{username}/?__a=1
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How can I add a box-shadow on one side of an element?
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but this shadow has no blur, and including blur make it come out from other parts. And if you account for that by reducing spread, it ends prematurely on the side you actually want it. UGHHHHH
– Muhammad Umer
Aug 24 '13...
Can anyone explain what JSONP is, in layman terms? [duplicate]
... of the work for you in the background.
By default jQuery requires you to include &callback=? in the URL of your AJAX request. jQuery will take the success function you specify, assign it a unique name, and publish it in the global scope. It will then replace the question mark ? in &callbac...
Generator Expressions vs. List Comprehension
... sorted and reversed work fine on any iterable, generator expressions included.
– marr75
Mar 25 '13 at 22:37
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