大约有 36,000 项符合查询结果（耗时：0.0394秒） [XML]
If threads share the same PID, how can they be identified?
...apart from the tgid), a multi-threaded process will in conclusion get more CPU time than a single-threaded one, provided that both have the same priority and none of the threads is halted for any reason (such as waiting for a mutex).
– Aconcagua
Sep 21 '15 at 1...
When would I use XML instead of SQL? [closed]
...nt of time. This only could be worked around with a costy (in the terms of CPU time) prebuffering with huge memory requirements.
– mg30rg
Nov 28 '13 at 8:43
...
What is an SDL renderer?
...ther important difference is that SDL_Surface uses software rendering (via CPU) while SDL_Texture uses hardware rendering (via GPU).
SDL_Rect
The simplest struct in SDL. It contains only four shorts. x, y which holds the position and w, h which holds width and height.
It's important to note th...
When someone writes a new programming language, what do they write it IN?
...ach instruction in the language corresponds to a single instruction to the CPU. Its very low level language and extremely verbose and very labor intensive to write in.
But even writing assembly language requires a program called an assembler to convert the assembly language into "machine language"....
In Clojure, when should I use a vector over a list, and the other way around?
...t both ends a list is a pretty terrible choice. A deque is much better (in CPU and especially memory). Try github.com/pjstadig/deque-clojure
– boxed
Dec 24 '13 at 10:00
2
...
How can I shuffle the lines of a text file on the Unix command line or in a shell script?
...
Here is a first try that's easy on the coder but hard on the CPU which prepends a random number to each line, sorts them and then strips the random number from each line. In effect, the lines are sorted randomly:
cat myfile | awk 'BEGIN{srand();}{print rand()"\t"$0}' | sort -k1 -n | c...
Why does Java's hashCode() in String use 31 as a multiplier?
... I think the choice of 31 is rather unfortunate. Sure, it might save a few CPU cycles on old machines, but you have hash collisions already on short ascii strings like "@ and #! , or Ca and DB . This does not happen if you choose, for instance, 1327144003, or at least 524287 which also allows bitsh...
Joins are for lazy people?
...out joins. BUT in many cases, your development time is more important than CPU time and memory. Give up a little performance and enjoy your life. Don't waste your time for little little performance. And tell him "Why don't you make a straight highway from your place to your office?"
...
What is the difference between mutex and critical section?
...
@TroyHoward try forcing your CPU to run at 100% all the time and see if INFINITE works better. The power strategy can take as long as 40ms on my machine (Dell XPS-8700) to crawl back up to full speed after it decides to slow down, which it may not do if ...
A cron job for rails: best practices?
... How to prevent others from access this task ? If the task taking cpu and called it frequently will cause problems.
– sarunw
Dec 12 '09 at 15:02
44
...