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What's the difference between size_t and int in C++?
... whose Huge memory mode had 20-bit addresses stored in 32 bits on a 16-bit CPU (but which could support the 32-bit instruction set of the 80386); the Motorola 68000 had a 16-bit ALU with 32-bit registers and addresses; there were IBM mainframes with 15-bit, 24-bit or 31-bit addresses. You also stil...
How does SIGINT relate to the other termination signals such as SIGTERM, SIGQUIT and SIGKILL?
...GURG I High bandwidth data is available at a socket.
SIGXCPU A CPU time limit exceeded.
SIGXFSZ A File size limit exceeded.
BusyBox init
BusyBox's 1.29.2 default reboot command sends a SIGTERM to processes, sleeps for a second, and then sends SI...
Array.Copy vs Buffer.BlockCopy
...ood performance is almost surely due to locality of reference exploited by CPU L1/L2/L3 memory caching in conjunction with no method call overhead.
For double buffers on 32-bit machines only: The explicit loop copy routine is better than both alternatives for all buffer sizes tested up to 100k. Th...
How to start two threads at “exactly” the same time
...on the synchronization techniques you use and of course having more than 1 cpu or core.
– ChaosPandion
Jul 31 '10 at 3:05
...
What REALLY happens when you don't free after malloc?
...space are simply released. By contrast, a series of free() calls will burn CPU time and can result in disk paging operations, cache misses, and cache evictions.
Regarding the possiblility of future code reuse justifing the certainty of pointless ops: that's a consideration but it's arguably not th...
Canary release strategy vs. Blue/Green
...to get an idea of how new version will perform (integrate with other apps, CPU, memory, disk usage, etc).
Blue/Green:
It is more about the predictable release with zero downtime deployment.
Easy rollbacks in case of failure.
Completely automated deployment process
...
Is GridFS fast and reliable enough for production?
...und 25k visitors per day). The server hasn't much ram, 2gigs, and even the cpu isn't really fast (Core 2 duo 1.8Ghz) but the server has plenty storage space : 10Tb (sata) in raid 0 configuration. The job the server is doing is very simple:
Each product on our price-comparer has an image (there are ...
多媒体组件 · App Inventor 2 中文网
...全就是杂乱的，不知是不是因为版本过旧，还是其他设置问题，经过一系列尝试（包括设置文本朗读器的国家及语言属性）仍然是不行的。最终只得选择“Google文字转语言引擎”（语音设置为”中文“），中文朗读的效果也非常...
The difference between fork(), vfork(), exec() and clone()
...
in fork(), either child or parent process will execute based on cpu selection..
But in vfork(), surely child will execute first. after child terminated, parent will execute.
share
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impr...
OS detecting makefile
...commended or ideal; they're just what the project to which I was adding OS/CPU auto-detection happened to be using.
ifeq ($(OS),Windows_NT)
CCFLAGS += -D WIN32
ifeq ($(PROCESSOR_ARCHITEW6432),AMD64)
CCFLAGS += -D AMD64
else
ifeq ($(PROCESSOR_ARCHITECTURE),AMD64)
...