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What do the terms “CPU bound” and “I/O bound” mean?
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so the memory bus quickly becomes the bottleneck, not the CPU.
This happens because adding two numbers takes a single CPU cycle, memory reads take about 100 CPU cycles in 2016 hardware.
So the CPU work done per byte of input data is too small, and we call this an IO-bound process.
The only way...
Lock-free multi-threading is for real threading experts
...struction is earlier in your code, it does not mean that it will actually happen earlier. CPUs can process instructions out of order: and they especially like to do this to instructions with memory accesses, to hide main memory latency and make better use of their cache.
Now, it is sure against int...
What steps should I take to protect my Google Maps API Key?
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and what if I take the api key to use in my own APP (windows/ios/android)? i can simulate the referrer and use this key for my own purpose at your cost !
– loki
Aug 6 '18 at 6:39
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How can I change my Cygwin home folder after installation?
... those and configure Cygwin using the new Windows Security model to POSIX mappings.
[[ -f /etc/passwd ]] && mv /etc/passwd /etc/passwd.bak
[[ -f /etc/group ]] && mv /etc/group /etc/group.bak
The /etc/nsswitch.conf file's db_home: setting defines how Cygwin fetches the user's home ...
SQL command to display history of queries
...edit the configuration files (e.g. edit /etc/mysql/my.cnf, then restart to apply changes).
Now, if you'd like you can tail -f /var/log/mysql/mysql.log
More info here: Server System Variables
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send mail from linux terminal in one line [closed]
...ail interface, you might even skip the bsd-mailx package and use Hengjie's approach.
– Izzy
Mar 16 '17 at 21:30
1
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Why use a READ UNCOMMITTED isolation level?
... know it, probably decades before Sql Server introduced it. I was quite disappointed when starting with SQL Server and I found out that all concurrency problems were solved using "primitive" locking mechanisms. Never saw "Read uncommitted" in Oracle. And the practitioner are as happy as the astronau...
How do I connect to a specific Wi-Fi network in Android programmatically?
I want to design an app which shows a list of Wi-Fi networks available and connect to whichever network is selected by the user.
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How to “add existing frameworks” in Xcode 4?
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As per Apple's documentation:
In the project navigator, select
your project.
Select your target.
Select the "Build Phases" tab.
Open "Link Binaries With Libraries"
expander.
Click the + button.
Select your framework.
(optional) ...
How to clear a notification in Android
... .setAutoCancel(true)
.setSmallIcon(R.drawable.app_icon)
.setContentIntent(pIntent)
.build();
.setAutoCancel(true)
when you click on notification, open corresponding activity and remove notification from notification bar
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