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All the changes that are fit to print. Droppin’ Mo’ Science 52 All Your IOPS Are Belong To Us: Ernie Souhrada, Database Engineer @ Pinterest - Percona Live MySQL Conference & Expo 2015 Full list of customizations / changes deployed: | |
- Linux kernel 3.18.7 | |
- irqbalance 1.0.8 | |
- RPS enabled | |
- Jemalloc instead of Glibc | |
- Disk IO scheduler = noop | |
- XFS + 64K RAID block size | |
- Mount options: - noatime,nobarrier,discard,inode64,logbsize=256k | |
- my.cnf changes: | |
innodb_max_dirty_pages_pct = 75 |
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# to generate your dhparam.pem file, run in the terminal | |
openssl dhparam -out /etc/nginx/ssl/dhparam.pem 2048 |
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import android.util.SparseArray; | |
import android.widget.AbsListView; | |
/** | |
* Helper class for calculating relative scroll offsets in a ListView or GridView by tracking the | |
* position of child views. | |
*/ | |
public class ListViewScrollTracker { | |
private AbsListView mListView; | |
private SparseArray<Integer> mPositions; |
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# You will need to make this file executable (chmod u+x) and run it with sudo | |
apt-get update | |
apt-get --fix-missing -y install build-essential m4 libncurses5-dev libssh-dev unixodbc-dev libgmp3-dev libwxgtk2.8-dev libglu1-mesa-dev fop xsltproc default-jdk | |
mkdir -p /src/erlang | |
cd /src/erlang | |
wget http://www.erlang.org/download/otp_src_R16B03-1.tar.gz | |
tar -xvzf otp_src_R15B01.tar.gz | |
chmod -R 777 otp_src_R15B01 | |
cd otp_src_R15B01 | |
./configure |
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