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Today's Topics:
1. Re: Storing the time difference between two Monotonic time
results (David McBride)
2. Re: Storing the time difference between two Monotonic time
results (Awsaf Rahman)
3. Re: Storing the time difference between two Monotonic time
results (David McBride)
4. Re: Storing the time difference between two Monotonic time
results (Awsaf Rahman)
----------------------------------------------------------------------
Message: 1
Date: Mon, 9 Jul 2018 08:45:27 -0400
From: David McBride <toa...@gmail.com>
To: The Haskell-Beginners Mailing List - Discussion of primarily
beginner-level topics related to Haskell <beginners@haskell.org>
Subject: Re: [Haskell-beginners] Storing the time difference between
two Monotonic time results
Message-ID:
<can+tr43kbaf50zetduj8ykqbv2qduxdmgkwczozc1zeri9b...@mail.gmail.com>
Content-Type: text/plain; charset="utf-8"
There is a diffTimeSpec function in that module that seems like it would
work.
On Mon, Jul 9, 2018 at 8:30 AM, Awsaf Rahman <awsafrahman1...@gmail.com>
wrote:
> Hello,
>
> I am trying to time a function I have written in haskell using the clock
> package in the following way:
>
> *start <- getTime Monotonic*
> *evaluate(something)*
> *end <- getTime Monotonic*
> *fprint (timeSpecs % "\n") start end*
>
>
> Now what I want is to store the time difference between *start* and *end.
> *Is there a way I can do that?
>
> Regards
> Awsaf
>
> _______________________________________________
> Beginners mailing list
> Beginners@haskell.org
> http://mail.haskell.org/cgi-bin/mailman/listinfo/beginners
>
>
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Message: 2
Date: Mon, 9 Jul 2018 15:08:42 +0200
From: Awsaf Rahman <awsafrahman1...@gmail.com>
To: The Haskell-Beginners Mailing List - Discussion of primarily
beginner-level topics related to Haskell <beginners@haskell.org>
Subject: Re: [Haskell-beginners] Storing the time difference between
two Monotonic time results
Message-ID:
<caoh+qtc2ntpibc1f4iwtux2jrbp7ob_8fnqata8vdgmkhjf...@mail.gmail.com>
Content-Type: text/plain; charset="utf-8"
I imported the System.Clock module and tried to use the diffTimeSpec
function but it keeps saying "out of scope".
On Mon, Jul 9, 2018 at 2:45 PM, David McBride <toa...@gmail.com> wrote:
> There is a diffTimeSpec function in that module that seems like it would
> work.
>
> On Mon, Jul 9, 2018 at 8:30 AM, Awsaf Rahman <awsafrahman1...@gmail.com>
> wrote:
>
>> Hello,
>>
>> I am trying to time a function I have written in haskell using the clock
>> package in the following way:
>>
>> *start <- getTime Monotonic*
>> *evaluate(something)*
>> *end <- getTime Monotonic*
>> *fprint (timeSpecs % "\n") start end*
>>
>>
>> Now what I want is to store the time difference between *start* and *end.
>> *Is there a way I can do that?
>>
>> Regards
>> Awsaf
>>
>> _______________________________________________
>> Beginners mailing list
>> Beginners@haskell.org
>> http://mail.haskell.org/cgi-bin/mailman/listinfo/beginners
>>
>>
>
> _______________________________________________
> Beginners mailing list
> Beginners@haskell.org
> http://mail.haskell.org/cgi-bin/mailman/listinfo/beginners
>
>
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Message: 3
Date: Mon, 9 Jul 2018 09:21:05 -0400
From: David McBride <toa...@gmail.com>
To: The Haskell-Beginners Mailing List - Discussion of primarily
beginner-level topics related to Haskell <beginners@haskell.org>
Subject: Re: [Haskell-beginners] Storing the time difference between
two Monotonic time results
Message-ID:
<CAN+Tr43mNpB=hTBmsMusxxSq4NhLKbBH8r=fiztrgfh1j2o...@mail.gmail.com>
Content-Type: text/plain; charset="utf-8"
I guess whatever version you are using did not export that function. In
any case the definition for that function is incredibly simple, so you
could just write your own for now.
diffTimeSpec :: TimeSpec -> TimeSpec -> TimeSpecdiffTimeSpec ts1 ts2 =
abs (ts1 - ts2)
On Mon, Jul 9, 2018 at 9:08 AM, Awsaf Rahman <awsafrahman1...@gmail.com>
wrote:
> I imported the System.Clock module and tried to use the diffTimeSpec
> function but it keeps saying "out of scope".
>
> On Mon, Jul 9, 2018 at 2:45 PM, David McBride <toa...@gmail.com> wrote:
>
>> There is a diffTimeSpec function in that module that seems like it would
>> work.
>>
>> On Mon, Jul 9, 2018 at 8:30 AM, Awsaf Rahman <awsafrahman1...@gmail.com>
>> wrote:
>>
>>> Hello,
>>>
>>> I am trying to time a function I have written in haskell using the clock
>>> package in the following way:
>>>
>>> *start <- getTime Monotonic*
>>> *evaluate(something)*
>>> *end <- getTime Monotonic*
>>> *fprint (timeSpecs % "\n") start end*
>>>
>>>
>>> Now what I want is to store the time difference between *start* and *end.
>>> *Is there a way I can do that?
>>>
>>> Regards
>>> Awsaf
>>>
>>> _______________________________________________
>>> Beginners mailing list
>>> Beginners@haskell.org
>>> http://mail.haskell.org/cgi-bin/mailman/listinfo/beginners
>>>
>>>
>>
>> _______________________________________________
>> Beginners mailing list
>> Beginners@haskell.org
>> http://mail.haskell.org/cgi-bin/mailman/listinfo/beginners
>>
>>
>
> _______________________________________________
> Beginners mailing list
> Beginners@haskell.org
> http://mail.haskell.org/cgi-bin/mailman/listinfo/beginners
>
>
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Message: 4
Date: Mon, 9 Jul 2018 15:40:44 +0200
From: Awsaf Rahman <awsafrahman1...@gmail.com>
To: The Haskell-Beginners Mailing List - Discussion of primarily
beginner-level topics related to Haskell <beginners@haskell.org>
Subject: Re: [Haskell-beginners] Storing the time difference between
two Monotonic time results
Message-ID:
<CAOH+QtdC3+N+Hs2h2o8xSG6Lxqs5ZO5YsVUG5KYdek9UGF8t=q...@mail.gmail.com>
Content-Type: text/plain; charset="utf-8"
Okay, here is what I am trying to do. I am trying to time this mergesort
program. I want to run this program 100, 1000, etc times and store the
timing results in a list if possible. Can't seem to figure out how to do
it! The following program prints the timings to the shell and I need to
figure out a way to store the timings in a list.
{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE BangPatterns #-}
import Control.Exception
import Formatting
import Formatting.Clock
import System.Clock
import Control.DeepSeq
mergesort [] = []
mergesort [x] = [x]
mergesort xs = let (lhalf, rhalf) = splitAt (length xs `div` 2) xs
in merge' (mergesort lhalf) (mergesort rhalf)
merge' lhalf rhalf = merge lhalf rhalf []
merge [] [] acc = reverse acc
merge [] y acc = reverse acc ++ y
merge x [] acc = reverse acc ++ x
merge (l:ls) (r:rs) acc
| l < r = merge ls (r:rs) (l:acc)
| otherwise = merge rs (l:ls) (r:acc)
toList :: String -> [Integer]
toList input = read ("[" ++ input ++ "]")
repeater unsortedlist 0 result = return (result)
repeater unsortedlist counter result = do
start <- getTime Monotonic
evaluate(mergesort unsortedlist)
end <- getTime Monotonic
fprint (timeSpecs % "\n") start end
repeater unsortedlist (counter-1) result
main = do
file <- getLine
contents <- readFile file
let !unsortedlist = (toList contents)
repeater unsortedlist 100 []
On Mon, Jul 9, 2018 at 3:21 PM, David McBride <toa...@gmail.com> wrote:
> I guess whatever version you are using did not export that function. In
> any case the definition for that function is incredibly simple, so you
> could just write your own for now.
>
> diffTimeSpec :: TimeSpec -> TimeSpec -> TimeSpecdiffTimeSpec ts1 ts2 = abs
> (ts1 - ts2)
>
>
>
> On Mon, Jul 9, 2018 at 9:08 AM, Awsaf Rahman <awsafrahman1...@gmail.com>
> wrote:
>
>> I imported the System.Clock module and tried to use the diffTimeSpec
>> function but it keeps saying "out of scope".
>>
>> On Mon, Jul 9, 2018 at 2:45 PM, David McBride <toa...@gmail.com> wrote:
>>
>>> There is a diffTimeSpec function in that module that seems like it
>>> would work.
>>>
>>> On Mon, Jul 9, 2018 at 8:30 AM, Awsaf Rahman <awsafrahman1...@gmail.com>
>>> wrote:
>>>
>>>> Hello,
>>>>
>>>> I am trying to time a function I have written in haskell using the
>>>> clock package in the following way:
>>>>
>>>> *start <- getTime Monotonic*
>>>> *evaluate(something)*
>>>> *end <- getTime Monotonic*
>>>> *fprint (timeSpecs % "\n") start end*
>>>>
>>>>
>>>> Now what I want is to store the time difference between *start* and *end.
>>>> *Is there a way I can do that?
>>>>
>>>> Regards
>>>> Awsaf
>>>>
>>>> _______________________________________________
>>>> Beginners mailing list
>>>> Beginners@haskell.org
>>>> http://mail.haskell.org/cgi-bin/mailman/listinfo/beginners
>>>>
>>>>
>>>
>>> _______________________________________________
>>> Beginners mailing list
>>> Beginners@haskell.org
>>> http://mail.haskell.org/cgi-bin/mailman/listinfo/beginners
>>>
>>>
>>
>> _______________________________________________
>> Beginners mailing list
>> Beginners@haskell.org
>> http://mail.haskell.org/cgi-bin/mailman/listinfo/beginners
>>
>>
>
> _______________________________________________
> Beginners mailing list
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>
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