Skip to content

Instantly share code, notes, and snippets.

View daverigby's full-sized avatar

Dave Rigby daverigby

22 followers · 3 following
View GitHub Profile
@daverigby
daverigby / example jemalloc stats
Created February 1, 2016 15:21
___ Begin jemalloc statistics ___
Version: 4.0.4-0-g91010a9e2ebfc84b1ac1ed7fdde3bfed4f65f180
Assertions disabled
Run-time option settings:
opt.abort: false
opt.lg_chunk: 21
opt.dss: "secondary"
opt.narenas: 1
opt.lg_dirty_mult: 3 (arenas.lg_dirty_mult: 3)
opt.stats_print: false
@daverigby
daverigby / Subdoc micro bench perf results (Haswell MBP)
Created February 19, 2016 14:19
[==========] Running 23 tests from 1 test case.
[----------] Global test environment set-up.
[----------] 23 tests from SubdocPerfTest
[ RUN ] SubdocPerfTest.Array5k_PushFirst
[ OK ] SubdocPerfTest.Array5k_PushFirst (218 ms)
[ RUN ] SubdocPerfTest.Array5k_PushLast
[ OK ] SubdocPerfTest.Array5k_PushLast (371 ms)
[ RUN ] SubdocPerfTest.Array5k_AddUnique
[ OK ] SubdocPerfTest.Array5k_AddUnique (525 ms)
[ RUN ] SubdocPerfTest.Array5k_RemoveBaseline
@daverigby
daverigby / Fix centos6.5 yum URLs
Last active February 23, 2016 12:40
sudo sed -i -e 's/mirror.centos.org\/centos/vault.centos.org/' /etc/yum.repos.d/CentOS-Base.repo
@daverigby
daverigby / repo local-manifest for Jenkins
Last active December 6, 2016 09:55
<?xml version="1.0" encoding="UTF-8"?>
<manifest>
<remote fetch="git://github.com/daverigby/" name="daverigby"/>
<!-- <remove-project name="build" /> -->
<project name="build" path="djr-cbbuild" remote="daverigby" revision="watson" groups="kv" />
</manifest>
@daverigby
daverigby / git show ignoring moved files
Last active March 3, 2016 16:32
For a given Git SHA, show only the lines in the commit which were not moved from elsewhere, i.e. are new. Useful for verifying patches which should just move code from A -> B and not change it.
‡ git show --stat 7c8aa164|grep \| | cut -f 2 -d ' ' | xargs -n1 git blame -M -C | grep 7c8aa164
7c8aa164 (Daniel Owen 2016-03-02 15:31:34 +0000 138) src/dcp/dcpconnmap.cc
7c8aa164 (Daniel Owen 2016-03-02 15:31:34 +0000 169) src/tapconnmap.cc
7c8aa164 (Daniel Owen 2016-03-02 15:31:34 +0000 198) src/dcp/dcpconnmap.cc
7c8aa164 (Daniel Owen 2016-03-02 15:31:34 +0000 225) src/tapconnmap.cc
7c8aa164 src/backfill.h (Daniel Owen 2016-03-02 15:31:34 +0000 34) #include "tapconnmap.h"
7c8aa164 src/checkpoint_remover.cc (Daniel Owen 2016-03-02 15:31:34 +0000 21) #include "dcp/dcpconnmap.h"
7c8aa164 src/checkpoint_remover.cc (Daniel Owen 2016-03-02 15:31:34 +0000 26) #include "tapconnmap.h"
7c8aa164 src/connmap.cc (Daniel Owen 2016-03-02 15:31:34 +0000 38) * A Callback task for connection notifier
7c8aa164 src/connmap.h (Daniel Owen 2016-03-02 15:31:34 +0000 18) #pragma once
@daverigby
daverigby / perf report de-facto flags
Last active March 9, 2016 17:13
perf report -g 'graph,0.5,caller'
# graph: Absoute overhead rates
# 0.5:
# caller: inverted caller based call graph
From: https://www.youtube.com/watch?v=nXaxk27zwlk
@daverigby
daverigby / Groovy script for per-label env vars
Created March 15, 2016 11:29
if (label == "windows") {
// Skip running unit tests on Windows due to CBD-1740
return [ "SKIP_UNIT_TESTS": 1 ]
}
@daverigby
daverigby / docker top
Last active September 2, 2016 17:33
Docker top
# Overall container usage:
docker stats $(docker ps --format="{{.Names}}")
# Inside a given container:
docker exec ubuntu12-cv-02 ps aux
@daverigby
daverigby / Compile with libc++ on Ubuntu
Last active April 6, 2016 13:21
Ubuntu 16.04:
sud apt-get install -y libc++-dev libc++abi-dev
@daverigby
daverigby / socket_buffer_sizes
Created June 3, 2016 16:26
Q: What happens to socket send/recv buffer sizes after an accept()?
#include <errno.h>
#include <netinet/in.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/socket.h>
void die(const char *f)
{
printf("%s: %s\n", f, strerror(errno));