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Best way to iterate through a Perl array
...u-thread-multi
I get:
Benchmark: running 1, 2, 3, 4, 5, 6 for at least 3 CPU seconds...
1: 3 wallclock secs ( 3.16 usr + 0.00 sys = 3.16 CPU) @ 12560.13/s (n=39690)
2: 3 wallclock secs ( 3.18 usr + 0.00 sys = 3.18 CPU) @ 7828.30/s (n=24894)
3: 3 wallclock secs ( 3...
How do I fix “Failed to sync vcpu reg” error?
...nstance, and my emulator started right up. FYI my virtual device was using CPU/ABI=x86, and I was running on a macbook pro.
– guyland123
Nov 20 '15 at 13:45
3
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Generating a unique machine id
...FirmwareTables and GetSystemFirmwareTable.
IIRC, the "unique id" from the CPUID instruction is deprecated from P3 and newer.
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c++ volatile关键字简析 - C/C++ - 清泛网 - 专注C/C++及内核技术
c++ volatile关键字简析volatile防范冲突,提高效率。降低CPU Cache Line锁冲突的几率。不同于普通变量在于:CPU缓存中有值的话,也得从内存中重新加载到缓存(普通变量不会);即认为寄存器值不可靠, volatile 防范冲突,提高效...
Difference between 'self' and 'total' in Chrome CPU Profile of JS
...hat is the difference between the 'self' and 'total' columns in the Chrome CPU profiling of JS code?
2 Answers
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Programmatically find the number of cores on a machine
... lines):
Win32
SYSTEM_INFO sysinfo;
GetSystemInfo(&sysinfo);
int numCPU = sysinfo.dwNumberOfProcessors;
Linux, Solaris, AIX and Mac OS X >=10.4 (i.e. Tiger onwards)
int numCPU = sysconf(_SC_NPROCESSORS_ONLN);
FreeBSD, MacOS X, NetBSD, OpenBSD, etc.
int mib[4];
int numCPU;
std::size_t l...
Can you pass parameters to an AngularJS controller on creation?
...nswered Feb 13 '14 at 10:23
François RomainFrançois Romain
9,1131212 gold badges7373 silver badges108108 bronze badges
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What is scope/named_scope in rails?
...ed Feb 2 '11 at 2:17
Michael SchäfermeyerMichael Schäfermeyer
2,70411 gold badge1313 silver badges77 bronze badges
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记一次MongoDB性能问题 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...目专门配备了几台高性能务器,清一色的双路四核超线程CPU,外加32G内存,运维人员安装好MongoDB后,就交我手里了,我习惯于在使用新服务器前先看看相关日志,了解一下基本情况,当我浏览MongoDB日志时,发现一些警告信息:
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C++11 std::threads vs posix threads
...hat can be avoided for most applications.
– Erik Alapää
Aug 24 '16 at 8:00
Also, std::thread brings type safety that...
