So I am looking at a heap with jmap on a remote box and I want to force garbage collection on it. How do you do this without popping into jvisualvm or jconsole and friends? I know you shouldn't be in the practice of forcing garbage collection -- you should just figure out why the heap is big/growing. I also realize the System.GC() doesn't actually force garbage collection -- it just tells the GC t
My little App creates an account in AccountManager. But if i move the App from internal storage to SD card, the account is automatically delete by AccountManagerService if i unmounted the SD card or reboot the machine. does anyone have any idea about this ? does this mean we cannot move the App to SD card or is it because i am missing some config attributes in the config xml ? D/AccountManagerServ
This solution worked better for me: Make a macro (I used Organize Imports, Format Code, Save All) Assign it a keystroke (I overrode Ctrl+S) Note: You will have to check the box "Do not show this message again" the first time for the organized imports, but it works as expected after that. Step-by-step for IntelliJ 10.0: Code -> "Optimize Imports...", if a dialogue box appears, check the box that sa
For some better understanding on what happens “under the hood”, I would love to do a complete trace of any notifications happening within my application. Naïve as I am, the first thing I tried was registering like this: Somewhere in my app: { [...] [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(traceNotifications:) name:nil object:nil]; [...] } - (void)traceNotifications
Why does the C preprocessor in GCC interpret the word linux (small letters) as the constant 1? test.c: #include <stdio.h> int main(void) { int linux = 5; return 0; } Result of $ gcc -E test.c (stop after the preprocessing stage): .... int main(void) { int 1 = 5; return 0; } Which of course yields an error. (BTW: There is no #define linux in the stdio.h file.)
Let me prefix this by saying that I know what foreach is, does and how to use it. This question concerns how it works under the bonnet, and I don't want any answers along the lines of "this is how you loop an array with foreach". For a long time I assumed that foreach worked with the array itself. Then I found many references to the fact that it works with a copy of the array, and I have since ass
I'm trying to answer two questions in a definitive list: What are the underlying data structures used for Redis? And what are the main advantages/disadvantages/use cases for each type? So, I've read the Redis lists are actually implemented with linked lists. But for other types, I'm not able to dig up any information. Also, if someone were to stumble upon this question and not have a high level su
Compiled this with scala 2.10.2: class Foo { lazy val bar = math.pow(5, 3) } Then decompiled the result with JD-GUI: import scala.math.package.; import scala.reflect.ScalaSignature; @ScalaSignature(bytes="\006\001e1A!\001\002\001\013\t\031ai\\8\013\003\r\tq\001P3naRLhh\001\001\024\005\0011\001CA\004\013\033\005A!\"A\005\002\013M\034\027\r\\1\n\005-A!AB!osJ+g\rC\003\016\001\021\005a\"\001\004=S:LGO
Getting unit testing, code coverage, and benchmarks right is mostly about picking the right tools. test-framework provides a one-stop shop to run all your HUnit test-cases and QuickCheck properties all from one harness. Code coverage is built into GHC in the form of the HPC tool. Criterion provides some pretty great benchmarking machinery I'll use as a running example a package that I just started
When programming in Haskell (and especially when solving Project Euler problems, where suboptimal solutions tend to stress the CPU or memory needs) I'm often puzzled why the program behaves the way it is. I look at profiles, try to introduce some strictness, chose another data structure, ... but mostly it's groping in the dark, because I lack a good intuition. Also, while I know how Lisp, Prolog a
リリース、障害情報などのサービスのお知らせ
最新の人気エントリーの配信
処理を実行中です
j次のブックマーク
k前のブックマーク
lあとで読む
eコメント一覧を開く
oページを開く