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How to create a string with format?
...yonerealityone
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bpftrace教程【官方】 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...ftrace。
9. 分析内核实时函数栈
# bpftrace -e 'profile:hz:99 { @[kstack] = count(); }'
Attaching 1 probe...
^C
[...]
@[
filemap_map_pages+181
__handle_mm_fault+2905
handle_mm_fault+250
__do_page_fault+599
async_page_fault+69
]: 12
[...]
@[
cpuidle_enter_state+164
do_...
NSDate get year/month/day
... how can I get the day of the year e.g 10 April is the current day is the 99th day of the current year?? –
– iOS Developer
Apr 10 '18 at 6:54
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Eclipse comment/uncomment shortcut?
...
drac_o
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answered Apr 4 '11 at 5:40
Hardik MishraHardik Mishra
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IntelliJ: Never use wildcard imports
...ames count to use static import with '*' to a higher value. Any value over 99 seems to work fine.
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Correct format specifier to print pointer or address?
... in format between different platforms, is the standard %p notation.
The C99 standard (ISO/IEC 9899:1999) says in §7.19.6.1 ¶8:
p The argument shall be a pointer to void. The value of the pointer is
converted to a sequence of printing characters, in an implementation-defined
manner.
(In...
Is volatile expensive?
...
123
On Intel an un-contended volatile read is quite cheap. If we consider the following simple ca...
Why are C# 3.0 object initializer constructor parentheses optional?
...pose we wanted to add a new prefix operator to C# called "frob":
x = frob 123 + 456;
(UPDATE: frob is of course await; the analysis here is essentially the analysis that the design team went through when adding await.)
"frob" here is like "new" or "++" - it comes before an expression of some sor...
How to Add Stacktrace or debug Option when Building Android Studio Project
...ed Jul 21 '18 at 5:58
auspicious99auspicious99
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How do I measure execution time of a command on the Windows command line?
...000
Process Time: 0:00:00.015
System Calls: 731
Context Switches: 299
Page Faults: 515
Bytes Read: 0
Bytes Written: 0
Bytes Other: 298
You can get TimeIt in the Windows 2003 Resource Kit. It's not available for direct download from the Microsoft Download Center, but one c...