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How can I create Min stl priority_queue?
The default stl priority queue is a Max one (Top function returns the largest element).
8 Answers
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Deleting queues in RabbitMQ
I have a few queues running with RabbitMQ. A few of them are of no use now, how can I delete them? Unfortunately I had not set the auto_delete option.
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How to get the ThreadPoolExecutor to increase threads to max before queueing?
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How can I work around this limitation in ThreadPoolExecutor where the queue needs to be bounded and full before more threads will be started.
I believe I have finally found a somewhat elegant (maybe a little hacky) solution to this limitation with ThreadPoolExecutor. It involves extending Li...
Why is creating a Thread said to be expensive?
...ask that is actually best performed in the current thread.)
final BlockingQueue<Integer> queue = new LinkedBlockingQueue<Integer>();
Runnable task = new Runnable() {
@Override
public void run() {
queue.add(1);
}
};
for (int t = 0; t < 3; t++) {
{
long...
Bash tool to get nth line from a file
...ile=tmp-input.txt
readonly size=1000000000
readonly pos=500000000
readonly retries=3
seq 1 $size > $file
echo "*** head -N | tail -1 ***"
for i in $(seq 1 $retries) ; do
time head "-$pos" $file | tail -1
done
echo "-------------------------"
echo
echo "*** tail -n+N | head -1 ***"
echo
seq ...
How to 'bulk update' with Django?
... for updating thousands of rows at once. Though it is suitable for smaller batches 10's to 100's. The size of the batch that is right for you depends on your CPU and query complexity. This tool is more like a wheel barrow than a dump truck.
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Java NIO FileChannel versus FileOutputstream performance / usefulness
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Copying 1000x2MB
NIO (transferFrom) ~2300ms
NIO (direct datababuffer 5000b flip) ~3500ms
Standard IO (buffer 5000b) ~6000ms
Copying 100x20mb
NIO (direct datababuffer 5000b flip) ~4000ms
NIO (transferFrom) ~5000ms
Standard IO (buffer 5000b) ~6500ms
Copying 1x1000mb
NIO (direct datababuf...
what is the basic difference between stack and queue?
What is the basic difference between stack and queue??
11 Answers
11
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Create batches in linq
Can someone suggest a way to create batches of a certain size in linq?
15 Answers
15
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Change default timeout for mocha
... line arguments. So you could create such a file that contains:
--timeout 5000
Whenever you run Mocha at the command line, it will read this file and set a timeout of 5 seconds by default.
Another way which may be better depending on your situation is to set it like this in a top level describe ...