大约有 43,000 项符合查询结果（耗时：0.0600秒） [XML]
Performance optimization strategies of last resort [closed]
... code, together taking over half the time:
/* IF ALL TASKS DONE, SEND ITC_ACKOP, AND DELETE OP */
if (ptop->current_task >= ILST_LENGTH(ptop->tasklist){
. . .
/* FOR EACH OPERATION REQUEST */
for ( ptop = ILST_FIRST(oplist); ptop != NULL; ptop = ILST_NEXT(oplist, ptop)){
. . .
/* GET CURR...
What is the performance of Objects/Arrays in JavaScript? (specifically for Google V8)
...V8's source, both implemented in JS itself:
function ArrayPop() {
if (IS_NULL_OR_UNDEFINED(this) && !IS_UNDETECTABLE(this)) {
throw MakeTypeError("called_on_null_or_undefined",
["Array.prototype.pop"]);
}
var n = TO_UINT32(this.length);
if (n == 0) {
...
How to use java.net.URLConnection to fire and handle HTTP requests?
...n Java 7 and later, use the constant: java.nio.charset.StandardCharsets.UTF_8.name()
String param1 = "value1";
String param2 = "value2";
// ...
String query = String.format("param1=%s&param2=%s",
URLEncoder.encode(param1, charset),
URLEncoder.encode(param2, charset));
The query par...
Stack, Static, and Heap in C++
...cle is proportional to the size of the heap -- see hpl.hp.com/personal/Hans_Boehm/gc/complexity.html.
– Martin B
Aug 5 '09 at 11:00
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show 1...
Java Equivalent of C# async/await?
...ousFileChannel.open(path);
ByteBuffer buffer = ByteBuffer.allocate(100_000);
await channel.read(buffer, 0, buffer, this);
return buffer.get(0);
}
Then I would imagine the compiler will transform the original async/await code into something like this:
public static Future<Byte> ...
What is RSS and VSZ in Linux memory management
...thods mentioned at: Memory usage of current process in C
main.c
#define _GNU_SOURCE
#include <assert.h>
#include <inttypes.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/mman.h>
#include <unistd.h>
typedef struct {
unsign...
Java string to date conversion
... 1234000000
V time-zone ID zone-id America/Los_Angeles; Z; -08:30
z time-zone name zone-name Pacific Standard Time; PST
O localized zone-offset offset-O GMT+8; GMT+08:00; UTC-08:00;
X zone-offset 'Z' for zero offset-X ...
What does cmd /C mean? [closed]
...here's also a command to "pause" the cmd window after output: "cmd /c file_name & PAUSE" it is bit different from cmd /k
– Gourav
Sep 5 '15 at 19:34
...
What does `unsigned` in MySQL mean and when to use it?
...want to work with positive, non zero numbers.
– still_dreaming_1
Nov 1 '17 at 15:56
add a com...
Append file contents to the bottom of existing file in Bash [duplicate]
...
For single string, use echo like this echo "export JAVA_HOME=/usr/lib/jvm/jdk1.8.0_112" >> ~/.bashrc
– shellbye
Jan 3 '17 at 8:36
...