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Gunicorn worker timeout error
...hronous workers assume that your application is resource-bound in terms of CPU and network bandwidth. Generally this means that your application shouldn’t do anything that takes an undefined amount of time. An example of something that takes an undefined amount of time is a request to the internet...
Why does Windows64 use a different calling convention from all other OSes on x86-64?
...of instruction encoding (the MOD R/M byte, see http://www.c-jump.com/CIS77/CPU/x86/X77_0060_mod_reg_r_m_byte.htm), register numbers 0...7 are - in that order - ?AX, ?CX, ?DX, ?BX, ?SP, ?BP, ?SI, ?DI.
Hence choosing A/C/D (regs 0..2) for return value and the first two arguments (which is the "classic...
Running a cron every 30 seconds
...ice.
Here is a simple example that logs "Hello World" every 10 seconds:
/etc/systemd/system/helloworld.service:
[Unit]
Description=Say Hello
[Service]
ExecStart=/usr/bin/logger -i Hello World
/etc/systemd/system/helloworld.timer:
[Unit]
Description=Say Hello every 10 seconds
[Timer]
OnBootSec=...
When should I choose Vector in Scala?
...
We only need to transform sequences by operations like map, filter, fold etc:
basically it does not matter, we should program our algorithm generically and might even benefit from accepting parallel sequences. For sequential operations List is probably a bit faster. But you should benchmark it if ...
How to get image height and width using java?
...fix is method that returns extension of path without "." so e.g.: png, jpg etc.
Example implementation is:
private String getFileSuffix(final String path) {
String result = null;
if (path != null) {
result = "";
if (path.lastIndexOf('.') != -1) {
result = path.su...
Maximum number of threads in a .NET app?
...ion 2.0 of the CLR, the maximum number
of worker threads default to 25 per CPU in the machine
and the maximum number of I/O
threads defaults to 1000. A limit of 1000 is effectively no limit at all."
Note this is based on .NET 2.0. This may have changed in .NET 3.5.
[Edit] As @Mitch pointed out,...
MFC CListCtrl使用方法详解 - C/C++ - 清泛网 - 专注C/C++及内核技术
...}
25. 在添加item后，再InsertColumn()后导致整列数据移动的问题
Q151897: CListCtrl::InsertColumn() Causes Column Data to Shift
http://support.microsoft.com/kb/151897/en-us
26. 关于listctrl第一列始终居左的问题
解决办法：把第一列当一个虚列，从第...
Executors.newCachedThreadPool() versus Executors.newFixedThreadPool()
...hers in the same host, which might cause the others crash due to long-time CPU waiting. So I think newFixedThreadPool can be more secure in this kind of scenario. Also this post clarifies the most outstanding differences between them.
– Hearen
May 10 '18 at 3:4...
Why use the INCLUDE clause when creating an index?
...are not ordered.
This means it isn't really useful for predicates, sorting etc as I mentioned above. However, it may be useful if you have a residual lookup in a few rows from the key column(s)
Another MSDN article with a worked example
...
What is the bit size of long on 64-bit Windows?
... you call the 16-bit type? And if you call the 16-bit type char for UTF-16 etc, what do you call the 8-bit type? So, using LP64 leaves you with 8-bit char, 16-bit short, 32-bit int, 64-bit long, with room for upwards expansion to 128-bit long long when (if?) that becomes relevant. After that, you've...