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Apache Spark: The number of cores vs. the number of executors
...acities,
yarn.nodemanager.resource.memory-mb and
yarn.nodemanager.resource.cpu-vcores, should probably be set to 63 *
1024 = 64512 (megabytes) and 15 respectively. We avoid allocating 100%
of the resources to YARN containers because the node needs some
resources to run the OS and Hadoop daemons. In ...
Android - SPAN_EXCLUSIVE_EXCLUSIVE spans cannot have a zero length
... Wow I had 68 MB of stuff cached by that app. :O
– XåpplI'-I0llwlg'I -
Apr 22 '14 at 10:42
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How to change Rails 3 server default port in develoment?
...n.rb, guarded with an if defined?(Rails::Server).
– XåpplI'-I0llwlg'I -
Aug 5 '15 at 10:13
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How do I get Pyflakes to ignore a statement?
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Is this documented anywhere?
– Håken Lid
Apr 30 '19 at 11:12
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FixedThreadPool vs CachedThreadPool: the lesser of two evils
...e of choice? How Java maps threads to OS threads, how that maps threads to CPU threads etc.? I'm asking because creating 150 threads within in ONE JRE only makes sense if you have massive CPU cores/threads underneath, which most likely is not the case. Depending on the OS and RAM in use, creating mo...
Node.js and CPU intensive requests
... larger you just make the main server a node cluster and reverse proxy the CPU intensive tasks to other servers built for milti-threaded processing.
– Evan Plaice
Jan 24 '12 at 21:53
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Which would be better for concurrent tasks on node.js? Fibers? Web-workers? or Threads?
...it a lot. But soon I found out that it lacked badly the ability to perform CPU-intensive tasks. So, I started googling and got these answers to solve the problem: Fibers, Webworkers and Threads (thread-a-gogo). Now which one to use is a confusion and one of them definitely needs to be used - afteral...
Is “IF” expensive?
...truction reordering, at the compiler level, and also to some extent on the CPU level (for an out-of-order CPU, of course). Nice detailed answer though.
– jalf
Nov 24 '08 at 20:58
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SQL-Server: Error - Exclusive access could not be obtained because the database is in use
...ess and old db was left in SINGLE_USER mode.
– Smörgåsbord
Dec 21 '16 at 18:50
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this worked fo...
Why is volatile not considered useful in multithreaded C or C++ programming?
...g is to use a memory barrier, which indicates both to the compiler and the CPU that no memory access may be reordered across this point. Placing such barriers around our volatile variable access ensures that even non-volatile accesses won't be reordered across the volatile one, allowing us to write ...