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mmap() vs. reading blocks
...g files that could potentially be 100GB or more in size. The files contain sets of variable length records. I've got a first implementation up and running and am now looking towards improving performance, particularly at doing I/O more efficiently since the input file gets scanned many times.
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How to specify a multi-line shell variable?
...an exit code of 1 in this situation; if that matters (you are running with set -e, for example), you'll want add a || true at the end of the first line.
– chepner
Mar 15 '13 at 12:53
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How do you run a SQL Server query from PowerShell?
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For others who need to do this with just stock .NET and PowerShell (no additional SQL tools installed) here is the function that I use:
function Invoke-SQL {
param(
[string] $dataSource = ".\SQLEXPRESS",
[...
Setting environment variables via launchd.conf no longer works in OS X Yosemite/El Capitan/macOS Sie
...g>
<string>-c</string>
<string>
launchctl setenv PRODUCTS_PATH /Users/mortimer/Projects/my_products
launchctl setenv ANDROID_NDK_HOME /Applications/android-ndk
launchctl setenv PATH $PATH:/Applications/gradle/bin
</string>
</array>
<ke...
How can I get the corresponding table header (th) from a table cell (td)?
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// Returns jquery object
function thFromTd(td) {
var ofs = td.offset().left,
table = td.closest('table'),
thead = table.children('thead').eq(0),
positions = cacheThPositions(thead),
matches = positions.filter(function(eldata) {
return eldata.left &...
Disable output buffering
...le
python process using "python -u"
(or#!/usr/bin/env python -u etc) or by
setting the environment variable
PYTHONUNBUFFERED.
You could also replace sys.stdout with
some other stream like wrapper which
does a flush after every call.
class Unbuffered(object):
def __init__(self, stream):
sel...
Vim: insert the same characters across multiple lines
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@icktoofay It looks like the variable you mean to set is timeoutlen not timeout.
– jez
Aug 29 '14 at 17:39
4
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Any implementation of Ordered Set in Java?
...nybody is familiar with Objective-C there is a collection called NSOrderedSet that acts as Set and its items can be accessed as an Array 's ones.
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Knockout.js bound input value not updated when I use jquery .val('xyz')
... editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
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How to write inline if statement for print?
I need to print some stuff only when a boolean variable is set to True . So, after looking at this , I tried with a simple example:
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