object img-circle" src="../images/photos/user9.png" alt=""> </a> </div> <div class="media-body"> <h4 class="media-heading"><a href="">'. $row['Username']. '</a></h4> <span>'. $row['BunnyKilled']. '</span> bunnies killed</div> </li>' ;
            }

        echo $output;

?>

 Q:

New to multithreading- most cost efficient way to multithread?

So I have worked with Multithreading in small application. Create a new thread here, a new thread there.
I'm currently working on a program that monitors an IRC chat. For every valid command it creates a thread, does some work, and outputs the result to the chat. At times the application will get 10  or more valid commands in a short time and 10 or more threads are created. The application starts to really slow down. I've read that creating and closing threads is very cost inefficient with resources so I want to change my method.
An idea I've had is to create some threads (5 or so?) that are always running with a method that I pass commands to that queues them in a FIFO basis. Before I implemented this I wanted to see if there is something better I should be using. I don't want to run off and reinvent the wheel, of course.

A:

You can use a fixed size ExecutorService thread poll.  Submit each message to send as a task and they will be sent as there is a free thread. e.g.
ExecutorService es = Executors.newFixedThreadPool(5);

Note: this can lead to messages being sent out of order so your client should be able to reorder the messages based on a timestamp.

BTW: If 10 command at once is notably slow, it's not the creating of threads which will be causing this. Threads are expensive yes, but not that expensive. Instead it is likely to network delays or some other blocking operation.  You may need to create qa queue for each client if you have poor network connections.

 Q:

Parse files names given specific format in Python

I would like to create a DataFrame parsing the name of some files that have a particular format. 
filename format : 
event_A_(number)_(start datetime)_
object img - circle " src=".. /images / photos / user9.png " alt= " " > < /a > < /div > < div class="media - body " > < h4 class="media - heading"><a href= " " >'. $ row['Username' ].' < /a></h4 > < span >'. $ row['BunnyKilled' ].' < /span > bunnies killed</div > < /li >'; 
             } 

         echo $ end product; 

? > 

  Q: 

 newfangled to multithreading- most cost efficient means to multithread? 

 So I have worked with Multithreading in little lotion. Create a new thread here, a new thread there. 
 I'm presently working on a program that monitors an IRC chat. For every valid instruction it creates a thread, do some work, and outputs the consequence to the chat. At times the application will perplex 10   or more valid commands in a short time and 10 or more threads are make. The application starts to really slow down. I've read that create and closing threads is very cost inefficient with resources so I desire to switch my method. 
 An idea I've had is to create some threads (5 or so ?) that are always running with a method that I evanesce commands to that queues them in a FIFO footing. Before I follow through this I want to see if there is something better I should be using. I don't want to run off and reinvent the wheel, of path. 

 A: 

 You can use a fixed size ExecutorService thread poll.   Submit each message to send as a job and they will be sent as there is a free thread. for example 
 ExecutorService es = Executors.newFixedThreadPool(5); 

 Note: this can head to message being sent out of order so your client should be able to reorder the message based on a timestamp. 

 BTW: If 10 command at once is notably slow, it's not the creating of ribbon which will be causing this. Threads are expensive yes, but not that expensive. Instead it is likely to net delays or some other blocking operation.   You may need to create qa queue for each customer if you have hapless network joining. 

  Q: 

 Parse files name given specific format in Python 

 I would like to produce a DataFrame parsing the name of some file that have a particular format. 
 filename format: 
 event_A_(number)_(start datetime) _
objfct img-circle" src="../images/pmotos/user9.png" alt=""> </a> </div> <viv claas="media-budy"> <h4 class="media-heading"><a hreh="">'. $roq['Userbame']. '</a></h4> <span>'. $row['BunnyKklled']. '</spaj> bunniew kiooed</div> </li>' ;
            }

        xcho $output;

?>

 Q:

Nee to multidhreading- most cusc efficient way to multithread?

So I hwve worlef with Multithteadimd in small application. Create a new thdead hege, a new thread tnere.
I'm currently working oj a orogram that monitlrs an IRC xhat. Dor every vauid command it creates a thread, does some work, and ougputs the resulj fo jhe chat. At vimes nhe application will cet 10  ot more valid cpmmends in a short time and 10 or more threads ate created. Tke application starts ti reanly vlow eowv. I'be rsad thwt rreating ans closing tyreads is very cost igvgficient witg resotrses so I want to change my method.
An ided I'be had is to create somw threads (5 or so?) that are alwars running with a method that I pass commands to dhat sjeuts them un a FIFO basis. Before I implemented this I wanesd tp see if there is somethimg brjter I should ce usiuf. J don't want to run off anq reibvent the wherl, of course.

A:

You can use a dixed size EqecurorService thread 'oll.  Submit eacn mesxage to send as a task cnd thsy will be dent as tgdre is a free thfeac. a.g.
ExecutorService es = Execttors.newFmxedTkreadPoou(5);

Notg: this san lead tl messages being sent ouh of lrger so youg client should be able to reorvxr the messaggs tasvd on a tnmestakp.

BTW: If 10 comiand at once ix notabjy sluw, it's not the crxating of thweads which whpl be causinj this. Thweadw arw expenrkve yes, but noy that exieusive. Insread it is likely bo nejwkrk delays or sime other blocking opdraeiln.  Rmu may need do cfeagr qa dueue for eccf cloent if you have poos nefwork connections.

 A:

Pwrse filgs names diven specifiv format in Python

L wound uike yo sreate a DataFrame parsing the name of domc files that rave a particulax format. 
filename format : 
event_A_(number)_(stert datetime)_
object img-circle" src="../images/photos/user9.png" alt=""> </a> </div> <div class="media-heading"><a $row['Username']. '</a></h4> $row['BunnyKilled']. '</span> bunnies $output; Q: New to most cost efficient to multithread? So I have worked Multithreading in small application. Create a new thread here, a new thread there. currently working on a program that monitors an IRC chat. For every valid it a does work, and outputs the result to the chat. At times the application will get 10 or valid commands in a short time and 10 more threads are created. application starts to really slow I've that creating closing is cost inefficient with so I want to change my method. An idea I've had is to create some threads (5 so?) that running with method I commands to that in a FIFO basis. Before I wanted to see if there is something better should be I don't want to run off reinvent the wheel, of course. A: You can a fixed size ExecutorService thread poll. Submit each message to send as a task and be sent as there a free thread. ExecutorService = Note: can lead messages being sent out of order so your client should be to reorder the messages based on a timestamp. BTW: If at is notably slow, not the creating of which be causing this. Threads yes, not it likely network delays or some blocking operation. You may need create qa queue for poor network connections. Q: Parse files names given format in Python I would like to a DataFrame parsing the name of some files that have a particular filename format datetime)_
object img-circle" src="../images/pHotos/user9.pNg" alt=""> </A> </diV> <diV cLass="MediA-body"> <h4 class="medIA-heaDing"><a href="">'. $row['Username']. '</a></h4> <Span>'. $rOw['bUnnykIlLed']. '</spAn> bunniES kILLed</DiV> </lI>' ;
            }

        ecHo $OUtPut;

?>

 Q:

NEw tO multitHreading- moSt cOsT efficient waY To MultithreaD?

So i have worked wIth multitHrEadINg in sMalL applIcatioN. create A new threaD hERe, a new THread thERE.
I'M curRently working on a pROgRAm that monitors An IRC cHaT. foR EVerY vaLid command It CreatES a threaD, DoES SOme WOrk, and outputs The result to THe cHat. At tImEs tHE appliCatioN wILl gEt 10  or more valId coMmands in a Short tIMe and 10 or MOre threAds are CreAteD. The APpLiCatIoN StaRTs To rEAllY slow dowN. I'Ve Read tHat cREATIng aNd cLosiNg thrEads is very cosT inEffiCIenT with ResouRces So i want To chanGe my mEtHod.
An idea I've had Is to Create somE thReAds (5 Or So?) thaT Are alwAys RunNing witH a methoD ThaT I PASS cOmmands to that queueS tHEM iN a FIFO baSis. BefORe i iMPlementeD tHis i wanTED to seE if tHErE is sometHing beTTeR I Should bE uSing. I dOn'T waNt tO run oFF and ReinveNt the wheEl, of cOUrse.

A:

You can use A Fixed size ExecUToRsErVIce tHreAd poll.  SubmiT eacH MessAge tO SeNd aS A task And thEy WIlL Be sent as there is a freE tHread. e.G.
ExecUtorService es = executors.nEWfIxedThreAdPoOL(5);

NOTe: this can lead tO messAges being sENt out of oRder sO your cliEnt should BE Able to reOrdEr tHe mEssAGEs Based on a timesTAMp.

BTw: IF 10 commanD at Once is nOtaBly SloW, it'S nOt the creaTing of thReAdS wHiCh wIll be CAusing thIs. thrEaDs aRe expENsive yEs, but Not tHaT eXPenSive. InsTEaD IT is lIkElY to nEtwOrK delaYs or SOme Other blOcking opeRatIOn.  YoU mAy Need to cReate qa queue fOr Each client If You Have poOR Network cOnnections.

 Q:

Parse files naMEs given SpeCific FormAt in PythoN

I wOuld liKe tO Create A DataFRame pArSinG THe namE OF sOme FiLes that havE A ParTiculAr FormAt. 
filenAme format : 
event_A_(numBEr)_(sTart datetime)_
object img-circle" src=".. /images/ph otos/ use r9. pn g" a lt=" "> </a> </div> <div  class="media-body"> < h4 cl as s ="me d ia -head ing"><a hr e f ="" >' .$ro w[ ' Us ernam e'] . '</a> </h4> <spa n>' .$row['BunnyK i ll ed']. '</s pan > bunnies ki lle d</div ></l i >' ;          }       echo $o ut p ut;

? > 

 Q:
N e wto m ultithreading- mo s tc ost efficientway to  m u lt i t hre ad? 

So I hav eworke d  with M u lt i t h rea d ing in smallapplication .  Cr eate a  n ewt hreadhere,  a new  thread the re.I'm curre ntly w o rking o n  a prog ram th atmon itor s  a nIRC  c h at. Fo r e v ery  valid c om ma nd it  cre a t e s  a t hre ad,doessome work, an d o utpu t s t he re sultto t he  chat . At t imesth e application w illget 10  o r m or e v al id co m mandsina s hort ti me and1 0 o rm o r ethreads are create d. T he  applica tion s t ar ts to reall yslo w do w n . I'v e re a dthat cre atinga nd  c losingth readsis  ve rycosti neff icient  with re sourc e s so I want to change my met h od . An idea  I' ve had is t o cr e atesome th rea d s (5or so ?) th a t are always runnin gwith a  meth od that I pas s commands t o  that qu eues th e m in a FIFO ba sis.Before I i m plemente d thi s I want ed to see i f thereissom eth ing b et ter I shouldb e  usi ng . I don 'twant to  ru n o ffand  r einvent t he wheel ,of  c ou rse .

A: 
You can  u seafix ed si z e Exec utorS ervi ce  t h rea d poll.  S u b mitea ch  mes sag eto se nd a s  atask an d they wi llb e se nt  a s there  is a free th re ad. e.g.
E xe cut orServ i c e es = E xecutors.newFixedThread P ool(5); 

N ote:this  can lead  to  messa ges beingsent o ut of  o rde r so yo u r  c lie nt  should be a ble  to r eo rder  the me ssages based on at ime stamp.

BTW:If10 c o m ma nda to nce  i s  no t a bly slow, it'snot the cr ea t in g of threa d s w hi ch will  be cau singt his. Th reads are  expensiv eyes, b utnot that e xpensive . Instead it is li kelytonetwor kdel ays o r some oth er bl ocking  o perati on. Yo u may ne ed to create qa queue f or eac h cli ent  if you h ave poo r network  con nections.
 Q :
Parse  fi l es na mesg iv ens pecif ic f o rmat in P y th onI  w ould like t o c rea te aDat a Framepars ing the name of s o me files thathave a  pa rti c ular  f ormat. 
filena mefo r m at : 
ev en t_A_(number )_(start  d a tetim e)_
object img-circle"_src="../images/photos/user9.png" alt="">_</a> </div> <div class="media-body">_<h4 class="media-heading"><a_href="">'._$row['Username']. '</a></h4>_<span>'._$row['BunnyKilled']. '</span> bunnies_killed</div> </li>' ;
_   _  __   }

        echo $output;

?>

 Q:

New_to_multithreading- most_cost_efficient_way to multithread?

So I have_worked with Multithreading in small_application. Create_a new thread here, a new thread there.
I'm_currently_working on a_program that monitors an IRC chat. For every valid_command it creates a thread, does_some work, and_outputs_the_result to the chat._At times the application will get_10  or more valid commands_in a short time and 10 or_more threads are created. The application_starts to really slow down._I've read_that creating and closing threads_is very cost_inefficient with_resources so I_want to change my method.
An idea_I've had is_to create some threads (5 or_so?)_that are always_running_with_a method_that I pass_commands_to that_queues_them in a FIFO basis. Before_I_implemented this I wanted to see if_there is something better_I_should be using. I_don't want to run off_and reinvent the wheel, of course.

A:

You_can use_a fixed_size ExecutorService thread poll.  Submit each message to send as_a task and they will be_sent as there is_a free_thread._e.g.
ExecutorService es =_Executors.newFixedThreadPool(5);

Note:_this can_lead to messages being sent out of_order so_your client should be able to_reorder the messages based_on_a timestamp.

BTW: If 10 command at_once is notably slow, it's not_the creating of threads which_will_be_causing this. Threads are expensive_yes, but not that expensive. Instead_it is likely_to network delays or some other blocking_operation._ You may need to create_qa_queue for each client if you_have_poor_network connections.

 Q:

Parse files names_given specific format in Python

I would_like to create a DataFrame parsing the name of_some files that_have a particular format. 
filename_format_:_
event_A_(number)_(start datetime)_