alq666’s gists

alq666 / kworker

Created August 29, 2014 21:40

Perf tracing of kworker

This file has been truncated, but you can view the full file.

	# ========
	# captured on: Fri Aug 29 21:35:50 2014
	# hostname : ip-10-81-171-47
	# os release : 3.2.0-67-virtual
	# perf version : 3.2.60
	# arch : x86_64
	# nrcpus online : 16
	# nrcpus avail : 16
	# cpudesc : Intel(R) Xeon(R) CPU E5-2670 v2 @ 2.50GHz
	# cpuid : GenuineIntel,6,62,4

alq666 / no-crypto-kworker-pg.txt

Created September 2, 2014 04:15

This file has been truncated, but you can view the full file.

	# ========
	# captured on: Fri Aug 29 21:35:50 2014
	# hostname : ip-10-81-171-47
	# os release : 3.2.0-67-virtual
	# perf version : 3.2.60
	# arch : x86_64
	# nrcpus online : 16
	# nrcpus avail : 16
	# cpudesc : Intel(R) Xeon(R) CPU E5-2670 v2 @ 2.50GHz
	# cpuid : GenuineIntel,6,62,4

alq666 / upgrade.sh

Created November 3, 2014 18:56

Working around pg8000 bug on SmartOS

	cd /opt/local/datadog
	source venv/bin/activate
	pip install pg8000 --upgrade
	bin/agent restart
	# wait for 10s
	bin/agent info # should show you proper postgres metrics

alq666 / docker-dog.sh

Created November 10, 2014 14:20

	docker run -d --privileged --name dd-agent -h `hostname` \
	-v /var/run/docker.sock:/var/run/docker.sock \
	-v /proc/mounts:/host/proc/mounts:ro \
	-v /sys/fs/cgroup/:/host/sys/fs/cgroup:ro \
	-e API_KEY=`etcdctl get /ddapikey` \
	datadog/docker-dd-agent

alq666 / fake-upstart.sh

Created April 24, 2015 19:21

Get out of dpkg errors when upstart is not running

	# make dpkg think that upstart is always happy even when systemd is running the show
	# credit: http://csgeek-random.blogspot.com/2015/04/ubuntu-1504-broken-upstart-working.html
	sudo dpkg-divert --local --rename --add /sbin/initctl
	sudo ln -s /bin/true /sbin/initctl

alq666 / crash.log

Created May 31, 2015 20:18

	Crashlog created at 2015-05-31 15:54:57 -0400

	===== MESSAGE:

	ArgumentError: invalid byte sequence in US-ASCII

	===== COMPILATION STACK:

	- [item] /ja/examples/Graphing Functions/ (rep default)

alq666 / packet-type3-dnetc.log

Created August 26, 2015 20:48

CPU benchmarks

	dnetc v2.9111-520-CFR-13101401 for Linux (Linux 3.13.0-62-generic).
	Please provide the entire version descriptor when submitting bug reports.
	The distributed.net bug report pages are at http://bugs.distributed.net/

	[Aug 26 20:28:39 UTC] Automatic processor type detection did not
	recognize the processor (tag: "100063F2")
	[Aug 26 20:28:39 UTC] OGR-NG: using core #0 (FLEGE-64 2.0).
	[Aug 26 20:28:59 UTC] OGR-NG: Benchmark for core #0 (FLEGE-64 2.0)
	0.00:00:17.02 [42,484,904 nodes/sec]
	[Aug 26 20:28:59 UTC] OGR-NG: using core #1 (cj-asm-generic).

alq666 / kafka.patch

Created September 29, 2015 22:00

	From 1814e7c904072f0f67c5128d53a20d26ebb56b1a Mon Sep 17 00:00:00 2001
	From: Jun Rao <[email protected]>
	Date: Tue, 12 May 2015 15:37:21 -0700
	Subject: [PATCH 1/3] synchronize on getting size from watchers

	---
	core/src/main/scala/kafka/server/RequestPurgatory.scala \| 6 +++++-
	1 file changed, 5 insertions(+), 1 deletion(-)

	diff --git a/core/src/main/scala/kafka/server/RequestPurgatory.scala b/core/src/main/scala/kafka/server/RequestPurgatory.scala

alq666 / prlimit.c

Last active October 26, 2017 22:05

Increase the number of open files for a running process (without using GDB)

	#define _GNU_SOURCE
	#define _FILE_OFFSET_BITS 64
	#include <stdio.h>
	#include <time.h>
	#include <stdlib.h>
	#include <unistd.h>
	#include <sys/resource.h>

	#define errExit(msg) do { perror(msg); exit(EXIT_FAILURE); \
	} while (0)

alq666 / microbench_gaugedelta.py

Created November 28, 2015 16:32

Micro-benchmarks for gauge deltas

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