大约有 2,130 项符合查询结果（耗时：0.0126秒） [XML]
When should I use mmap for file access?
... you can work with some types of files. mmap can't be used on things like pipes and ttys.
share
|
improve this answer
|
follow
|
...
In git, is there a way to show untracked stashed files without applying the stash?
If I run git stash -u , I can stash untracked files. However, said untracked files don't show up at all with git stash show stash@{0} . Is there any way to show untracked stashed files without applying the stash?
...
How does BLAS get such extreme performance?
...ster than the C version, and aren't even "optimized" assembly - there's no pipe-lining yet and there is unnecessary stack operations.
Also your code is not "restrict correct" - how does the compiler know that when it modifies C, it isn't modifying A and B?
...
What is the meaning of “POSIX”?
...links), poll(), stat, sync, nftw()
process and threads: fork, execl, wait, pipe, semaphors sem_*, shared memory (shm_*), kill, scheduling parameters (nice, sched_*), sleep, mkfifo, setpgid()
networking: socket()
memory management: mmap, mlock, mprotect, madvise, brk()
utilities: regular expressions ...
How does Windows 8 Runtime (WinRT / Windows Store apps / Windows 10 Universal App) compare to Silver
...at, and some that could be used for it are intentionally restricted. Named pipes aren't there, for example, nor are memory mapped files. There are sockets (including server sockets), but when connecting to localhost, you can only connect to the same app. You could use normal files in one of the shar...
Splitting string into multiple rows in Oracle
...
I would like to propose a different approach using a PIPELINED table function. It's somewhat similar to the technique of the XMLTABLE, except that you are providing your own custom function to split the character string:
-- Create a collection type to hold the results
CREATE O...
How do I set a variable to the output of a command in Bash?
...st one fork less:
shell=$(grep $USER </etc/passwd | cut -d : -f 7)
All pipes (|) implies forks. Where another process have to be run, accessing disk, libraries calls and so on.
So using sed for sample, will limit subprocess to only one fork:
shell=$(sed </etc/passwd "s/^$USER:.*://p;d")
echo ...
CALL command vs. START with /WAIT option
How is the START command with a WAIT option
6 Answers
6
...
How are zlib, gzip and zip related? What do they have in common and how are they different?
...has an option to do the compression at the same time, instead of having to pipe the output of tar to compress. This all carried forward to the gzip format, and tar has an option to compress directly to the .tar.gz format. The tar.gz format compresses better than the .zip approach, since the compre...
Batch script: how to check for admin rights
...The error output is first redirected to the standard output, which is then piped to the find command. At this point we have to look for the only parameter that is supported in all Windows version since Windows 2000: /SCANNOW. The search is case insensitive, and the output is discarded by redirecting...