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I can give it floating point numbers, such as
time.sleep(0.5)
but how accurate is it? If i give it
time.sleep(0.05)
will it really sleep about 50 ms?
Started by Claudiu on
, 5 posts
by 5 people.
Answer Snippets (Read the full thread at stackoverflow):
I have seen accurate sleeps a pseudo real-time kernel by install....
Their Unix equivalents: times are expressed as floating point numbers, time() returns the most accurate or Windows the smallest interval you can sleep for is about 10-13ms.
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I need to evaluate the sum of the row: 1/1+1/2+1/3+...+1/n. Considering that in C++ evaluations are not complete accurate, the order of summation plays important role. 1/n+1/(n-1)+...+1/2+1/1 expression gives the more accurate result. So I need to find...
Started by Constantius on
, 9 posts
by 9 people.
Answer Snippets (Read the full thread at stackoverflow):
If this is your homework and you are required to use the numbers you're ... .
For large n multiplication you should get much more accurate results.
You probably can't really predict this, though.
Answer for some addition orders than others.
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What is a good approach to keeping accurate counts of how many times a page has been viewed
I'm using Django. Specifically, I don't want refreshing the page to up the count.
Started by Johnd on
, 6 posts
by 6 people.
Answer Snippets (Read the full thread at stackoverflow):
Be warned however that this table will grow really fast.
From these values (besides the PageID of course).
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Ask your Facebook Friends
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I'm trying to rebuild an old metronome application that was originally written using MFC in C++ to be written in .NET using C#. One of the issues I'm running into is getting the timer to "tick" accurately enough.
For example, assuming an easy BPM (beats...
Started by jerhinesmith on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at stackoverflow):
It sounds like you're using the Windows Forms one, but actually you might find the System.Threading.Timer class more useful - but be careful because it calls back on a pool thread, so you can't directly... .
There are three timer classes called 'Timer' in .NET.
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Is it possible to sleep for an amount of time that will be accurate to less than 100 microseconds on Windows CE? The less jitter the better - ideally we'd like single digit microsecond response times.
What we really want is a 5ms timer with very low jitter...
Started by bdonlan on
, 5 posts
by 5 people.
Answer Snippets (Read the full thread at stackoverflow):
If what you really need is something to fire precisely 250 times every second need to sleep is not a battery/thread-yield issue and just a matter of accurate timing, you can use.
You're out of luck.
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What is the best way to retrieve the current date? Currently I am storing the date like this:
string date = DateTime.Now.ToString("yyyyMMdd");
Obviously, if the user changes the date on their system, this will also be affected.
I need a way to access ...
Started by Nate Shoffner on
, 9 posts
by 9 people.
Answer Snippets (Read the full thread at stackoverflow):
StampUtc.ToLocalTime();
Define "accurate"? If you cannot trust the system date, then you need to get is it that you really want?
You could implement a very simple web service or RESTful call on a server want independent accurate....
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How accurate can I expect the time to be from a stratum 0 NTP server on the same subnet on ethernet?
I have an application that depends on gpsd and ntpd to accurately set the system time on a linux machine.
gpsd is fed NMEA + PPS
The application is punping ~25MB per second over the network and I think the loading on the system is causing jitter in the...
Started by Jeff V on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
If....
However, you don't really say how you're) the underlying synchronisation.
For a few days, there shouldn't really be much jitter in any of the the actual clocks, because the ntpd implements a heap of very long time-constant filtering.
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I've been using the (Java) Highlighter for Lucene (in the Sandbox package) for some time. However, this isn't really very accurate when it comes to matching the correct terms in search results - it works well for simple queries, for example searching ...
Started by Mat Mannion on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at stackoverflow):
You could also look....
It's possible that the highlighting in Solr is usable as an API outside of Solr .
Http://lucene.apache.org/solr
Solr is a sort of generic search application that uses Lucene and supports highlighting .
You could look into using Solr.
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I've been building an error logging app recently and was after a way of accurately timestamping the incoming data. When I say accurately I mean each timestamp should be accurate relative to each other (no need to sync to an atomic clock or anything like...
Started by Jon Cage on
, 6 posts
by 6 people.
Answer Snippets (Read the full thread at stackoverflow):
"timestamp should be accurate relative to each other "
Why time? Why not a sequence stipulates, without a realtime....
Is actually (slightly) more accurate than time.time(), but it measures wallclock since the first call trickier though.
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I recently discovered that x**.5 and math.sqrt(x) do not always produce the same result in Python:
Python 2.6.1 (r261:67517, Dec 4 2008, 16:51:00) [MSC v.1500 32 bit (Intel)] on win32 >>> 8885558**.5 - math.sqrt(8885558) -4.5474735088646412e-...
Started by Ben Blank on
, 10 posts
by 10 people.
Answer Snippets (Read the full thread at stackoverflow):
Both the pow function and the math.sqrt() function can calculate results that are more accurate is a difference of ~10^(-13) a problem when taking the square root of a 7 digit number? Even the most accurate accurate, they both diverge....
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