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What is a “thread” (really)?
...is loaded in the processor core, the thread is running. The processor is fetching instructions demanded by the thread and updating the thread registers. When a context switch is needed, the processor saves this set of register values into memory and loads a set belonging to a different thread, typ...
HTTP Basic Authentication - what's the expected web browser experience?
...ord in HTTP URLs, thus you can pick a file
like:
curl http://name:passwd@machine.domain/full/path/to/file
or specify user and password separately like in
curl -u name:passwd http://machine.domain/full/path/to/file
HTTP offers many different methods of authentication and curl su...
Benchmarking (python vs. c++ using BLAS) and (numpy)
... (renamed: MKL --> Nehalem MKL, Netlib Blas --> Nehalem Netlib BLAS, etc)
Single threaded performance:
Multi threaded performance (8 threads):
Threads vs Matrix size (Ivy Bridge MKL):
Benchmark Suite
Single threaded performance:
Multi threaded (8 threads) performance:
Conclusi...
Android studio using > 100% CPU at all times - no background processes appear to be running
...pears there are no background processes that the IDE is running (indexing, etc). I might suspect this were something specific to my box, but some fellow developers are encountering this as well.
...
Programmatically find the number of cores on a machine
...umCPU = sysconf(_SC_NPROCESSORS_ONLN);
FreeBSD, MacOS X, NetBSD, OpenBSD, etc.
int mib[4];
int numCPU;
std::size_t len = sizeof(numCPU);
/* set the mib for hw.ncpu */
mib[0] = CTL_HW;
mib[1] = HW_AVAILCPU; // alternatively, try HW_NCPU;
/* get the number of CPUs from the system */
sysctl(mib, ...
What does the Visual Studio “Any CPU” target mean?
...universe even if they control things like screen colors, default settings, etc.
– supercat
May 16 '14 at 21:45
This is...
Why is Node.js single threaded? [closed]
...b servers typically do ALOT of cpu intensive stuff it's not JUST database fetching. We need to process what we fetch, and do alot of business logic alot of the time before serving it up to the client.
– foreyez
Jul 31 '13 at 0:40
...
Is gettimeofday() guaranteed to be of microsecond resolution?
... a pretty wide array of boxes, everything from 2-8 cores.
Of course, YMMV, etc, but it seems to be a reliable and low-overhead
(because it doesn't make a context switch into system-space) method
of timing.
Generally how it works is:
declare the block of code to be assembler (and volatile, so the
...
Using OpenSSL what does “unable to write 'random state'” mean?
... it is on most systems. You can check www-data's home folder with cat /etc/passwd | grep www-data)
– Nick
Feb 15 '17 at 14:28
1
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WinDbg基础资料（日本語） - IT优秀资料 - 清泛网 - 专注C/C++及内核技术
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Tip01：非Crash問題のソース定位
デバッグ対象にAttachし、定位したい画面を開いて、「Ctrl+Pause/Break」キーを押す。
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