大约有 23,000 项符合查询结果（耗时：0.0397秒） [XML]
How efficient is locking an unlocked mutex? What is the cost of a mutex?
...is:
This shows the result of benchmark runs on the following code:
uint64_t do_Ndec(int thread, int loop_count)
{
uint64_t start;
uint64_t end;
int __d0;
asm volatile ("rdtsc\n\tshl $32, %%rdx\n\tor %%rdx, %0" : "=a" (start) : : "%rdx");
mutex.lock();
mutex.unlock();
asm volatile ...
How can I randomize the lines in a file using standard tools on Red Hat Linux?
...
64
And a Perl one-liner you get!
perl -MList::Util -e 'print List::Util::shuffle <>'
It u...
CMake unable to determine linker language with C++
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I also faced a similar error while compiling my C-based code. I fixed the issue by correcting the source file path in my cmake file. Please check the source file path of each source file mentioned in your cmake file. This might help you too.
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What is the correct way to restore a deleted file from SVN?
...6:12
BCS
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answered Jan 29 '09 at 5:01
Sean Bright...
Command-line svn for Windows?
Is there a command-line based version of svn for Windows? I know I can get TortoiseSVN, but that just doesn't work for me.
...
How do I create a slug in Django?
...so, don't forget the prepopulate_fields ModelAdmin setting, if you want JS-based auto-prepopulate in the admin.
– Carl Meyer
May 8 '09 at 14:22
4
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what is faster: in_array or isset? [closed]
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Jason McCrearyJason McCreary
64.4k2020 gold badges122122 silver badges166166 bronze badges
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How to get the system uptime in Windows? [closed]
...d -eq 6005 -or $_.Id -eq 6006}
6: Programmatically, by using GetTickCount64
GetTickCount64 retrieves the number of milliseconds that have elapsed since the system was started.
7: By using WMI
wmic os get lastbootuptime
8: The new uptime.exe for Windows XP and up
Like the tool from Micros...
How do I convert seconds to hours, minutes and seconds?
...8) - timedelta(hours=10)) the result is '-1 day, 22:00:00' and the integer based solution is exactly for those situations where you need '-02:00:00'.
– cprn
Sep 21 '17 at 17:02
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Missing Maven dependencies in Eclipse project
...My Project was just screwed up. Here is how I fixed it for Eclipse Indigo x64 (J2EE 3.7.3):
Deleted my POM file (backedup of course).
Project Context Menu > Maven > Disable Maven Nature.
Deleted the project (but not contents on disk).
Re-imported as Import > General > Existing Project....