multithreading - change the thread pool size of JVM -

-

i need change thread pool size of jvm . there possibility this. running high threaded jar on jvm. thats why threads goes under sleep or block stages.

the jvm doesn't have global thread pool per se. if using 1 of java.util.concurrent.executor-implementations, read on javadoc class/method. adjusted in java-code per pool have created (from code) , not related jvm.

that said, please consider each thread (typically) consumes 512k of virtual memory it's stack, limits number of maximum available threds 32-bit jvm (but doesn't sound problem @ all).

when threads block lot have kind of contention, meaning have common resource waiting for. perhaps you using "synchronized" lot? more threads won't solve problem, rather consume more resources in os , jvm.

please bit more details of code doing , how, , perhaps can bit more.


Comments

Post a Comment

Popular posts from this blog

c# - how to write client side events functions for the combobox items -

-
<dx:aspxcombobox id="aspxcombobox2" runat="server" clientidmode="autoid" selectedindex="-1" onselectedindexchanged="aspxcombobox1_selectedindexchanged1" > <clientsideevents selectedindexchanged="function(s, e) { grid.selectrows();}" /> <items> <dx:listedititem text="selecte rows" /> <dx:listedititem text="unselectall" /> </items> </dx:aspxcombobox> i want write event "unselect all" item in combobox. how can this? you'll need write javascript function iterates thru combo-box , marks selected items false. see select/unselect checkbox fields using pure javascript , html sample code msdn:
Read more

exception - Python, pyPdf OCR error: pyPdf.utils.PdfReadError: EOF marker not found -

-
pypdf throws exception: pypdf.utils.pdfreaderror: eof marker not found i don't need fix pypdf, need eof error cause "except" block execute , skip on file, doesn't work. still causes program stop running. background: batch ocr program pdfs python, pypdf, adobe pdf ocr error: unsupported filter /lzwdecode ... saga continues. i got 10,000 pdfs in folder. ocrd, not. can't tell 'em apart. step 1 figure out ones not ocrd , ocr (see other threads details). so i'm using pypdf. exceptions related unrecognized characters , unsupported filters when try read text. guestimated if throws exception, it's got text in , doens't go in list. problem solved, right? so: pypdf import pdffilewriter, pdffilereader import sys, os, pypdf, re path = 'c:\users\homer\documents\my pdfs' filelist = os.listdir(path) has_text_list = [] does_not_have_text_list = [] pdf_name in filelist: pdf_file
Read more