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How can I decompress a gzip stream with zlib?
..._DATA_ERROR). If a gzip stream is being decoded, strm->adler is
a crc32 instead of an adler32.
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What do the terms “CPU bound” and “I/O bound” mean?
...tel Core i7-7820HQ CPU (4 cores / 8 threads), RAM: 2x Samsung M471A2K43BB1-CRC (2x 16GiB) I get results like this:
Plot data.
Note that there is a lot of variance between run however. But I can't increase the array size much further since I'm already at 8GiB, and I'm not in the mood for statistics ...
廉价共享存储解决方案1-drbd+ha+nfs - 更多技术 - 清泛网 - 专注C/C++及内核技术
...载模块
modprobe drbd
lsmod | grep drbd
drbd 376868 0
libcrc32c 1246 1 drbd
3.3.5编译安装drbd-utils
----------------------------
cd /usr/local/src/drbd-utils-8.9.3
这里用了--without-83support，因为安装的是8.4以上版本
/configure --prefix=/us...
What does “S3 methods” mean in R?
...n of the numerous R object systems according to "Advanced R, 2nd edition" (CRC Press, 2019) by Hadley Wickham (Chief Scientist at RStudio), which has a web representation here, based on the chapter about Object-Oriented Programming.
The first edition from 2015 has a web representation here, with...
Should I use SVN or Git? [closed]
...w it does it) are implementation details. It's like the difference between CRC and SHA1, fundamentally very different but they do the same thing.
– Erik Funkenbusch
Jul 4 '13 at 1:58
...
Quickly find whether a value is present in a C array?
...nt to a bitwise mask of low bits (AND operation). Example hash functions:
CRC of input bytes, modulo n.
((x << i) ^ (x >> j) ^ (x << k) ^ ...) % n (picking as many i, j, k, ... as needed, with left or right shifts)
Then you make a fixed table of n entries, where the hash maps the...
Heap vs Binary Search Tree (BST)
...ores / 8 threads, 2.90 GHz base, 8 MB cache), RAM: 2x Samsung M471A2K43BB1-CRC (2x 16GiB, 2400 Mbps), SSD: Samsung MZVLB512HAJQ-000L7 (512GB, 3,000 MB/s)
So clearly:
heap insert time is basically constant.
We can clearly see dynamic array resize points. Since we are averaging every 10k inserts ...
What are the differences between the threading and multiprocessing modules?
...tel Core i7-7820HQ CPU (4 cores / 8 threads), RAM: 2x Samsung M471A2K43BB1-CRC (2x 16GiB), SSD: Samsung MZVLB512HAJQ-000L7 (3,000 MB/s).
Visualize which threads are running at a given time
This post https://rohanvarma.me/GIL/ taught me that you can run a callback whenever a thread is scheduled wit...
What's the difference between equal?, eql?, ===, and ==?
...red to as only hash. Some commonly used hashcode types are MD5, SHA-1, and CRC. They are used in encryption algorithms, database indexing, file integrity checking, etc. Some programming languages, such as Ruby, provide a collection type called hash table. Hash tables are dictionary-like collections ...
What do 'real', 'user' and 'sys' mean in the output of time(1)?
...p, Intel Core i7-7820HQ CPU (4 cores / 8 threads), 2x Samsung M471A2K43BB1-CRC RAM (2x 16GiB).
sleep
Non-busy sleep does not count in either user or sys, only real.
For example, a program that sleeps for a second:
#define _XOPEN_SOURCE 700
#include <stdlib.h>
#include <unistd.h>
int...