add more benchmarks, varchar case

Author: Nicola Strappazzon C

README.md

@@ -18,13 +18,98 @@ Each direcyory have a specific test case.
 -
 -
 
+## Hardware
+
+- db.m5.xlarge (4vCPU, 16GiB RAM, 1000 IOPS (io1), ) zone a.
+- db.m6g.xlarge (4vCPU, 8GiB RAM, 1000 IOPS (io1), )
+
+- bastion, zone a.
+
 ## Requirement
 
-Create a MySQL database and user for sysbench:
+Create a RDS:
+
+```
+aws rds create-db-instance \
+	--db-instance-identifier benchmark \
+	--db-instance-class db.t3.micro \
+	--engine mysql \
+	--engine-version 8.0.28 \
+	--master-username admin \
+	--master-user-password admin123 \
+	--allocated-storage 100 \
+	--vpc-security-group-ids sg-088a458cf7e281afe \
+	--availability-zone eu-west-1a \
+	--db-subnet-group-name thn-stg-generic-db \
+	--backup-retention-period 0 \
+	--no-enable-performance-insights \
+	--no-multi-az
+```
+
+Bastion
+
+Install sysbench on your Amazon Linux:
 
 ```bash
-mysql> CREATE SCHEMA sbtest;
-mysql> GRANT ALL PRIVILEGES ON sbtest.* TO sbtest@'localhost' IDENTIFIED BY 'sbtest';
-mysql> FLUSH PRIVILEGES;
+sudo yum install gnuplot
+```
 
+```bash
+sudo yum -y install git gcc make automake libtool openssl-devel ncurses-compat-libs
 ```
+
+```bash
+wget http://repo.mysql.com/mysql-community-release-el7-5.noarch.rpm
+sudo rpm -ivh mysql-community-release-el7-5.noarch.rpm
+sudo yum -y update
+```
+
+```bash
+sudo yum -y install mysql-community-devel mysql-community-client mysql-community-common
+```
+
+
+```bash
+git clone https://github.com/akopytov/sysbench
+```
+
+5. Build the binary
+
+```bash
+cd sysbench
+git checkout tags/1.0.20
+./autogen.sh
+./configure
+make
+sudo make install
+```
+
+6. You can verify the installation by:
+
+```bash
+sysbench --version
+```
+
+7. Create a MySQL database and user for sysbench:
+
+MySQL 5.x
+
+```sql
+CREATE SCHEMA sbtest;
+GRANT ALL PRIVILEGES ON sbtest.* TO sbtest@'%' IDENTIFIED BY 'sbtest';
+FLUSH PRIVILEGES;
+```
+
+MySQL 8.0
+
+```sql
+CREATE SCHEMA sbtest;
+CREATE USER 'sbtest'@'%' IDENTIFIED WITH mysql_native_password BY 'sbtest';
+GRANT ALL PRIVILEGES ON sbtest.* TO 'sbtest'@'%';
+FLUSH PRIVILEGES;
+```
+
+export MYSQL_HOST="benchmark.cse2qkeganda.eu-west-1.rds.amazonaws.com"
+mysql -h $MYSQL_HOST -u sbtest -psbtest -e "show databases"
+
+join

doc/queries.md

@@ -0,0 +1,19 @@
+# Queries
+
+Used queries to get more details for each case.
+
+Index size:
+
+```sql
+SELECT ROUND(stat_value * @@innodb_page_size / 1024 / 1024, 2) AS size_in_mb
+FROM mysql.innodb_index_stats
+WHERE stat_name = 'size' AND table_name = 'uuid_varchar';
+```
+
+Table size:
+
+```sql
+SELECT ROUND((data_length + index_length) / 1024 / 1024) AS size_in_mb, table_rows AS 'rows'
+FROM information_schema.tables
+WHERE table_name = 'uuid_varchar';
+```

doc/tips.md

@@ -0,0 +1,9 @@
+# Tips
+
+## CHAR vs VARCHAR
+
+There is insignificant difference especially considering CHAR has a maximum length of 255 (VARCHAR is 64K). With the effective equivalent limited to 255 that is a very quick comparison in the case of this field being used as join criteria.
+
+The fragmentation is no longer an consideration as <768 bytes is stored inline. This is still strictly possible in utf8mb4, "InnoDB encodes fixed-length fields greater than or equal to 768 bytes in length as variable-length fields"1 so no difference between CHAR and VARCHAR.
+
+https://dev.mysql.com/doc/refman/8.0/en/char.html

primary_key/README.md

@@ -1,5 +1,8 @@
 # Primary Keys
 
-![Bigint](https://raw.githubusercontent.com/swapbyt3s/MySQLBenchmarks/master/primary_key/bigint/bigint.svg?sanitize=true)
-![Binary](https://raw.githubusercontent.com/swapbyt3s/MySQLBenchmarks/master/primary_key/binary/binary.svg?sanitize=true)
-![Char](https://raw.githubusercontent.com/swapbyt3s/MySQLBenchmarks/master/primary_key/char/char.svg?sanitize=true)
+Comparing common data type performance, each test is running up 30 minutes, and work 1000000 rows approximate.
+
+![BIGINT](https://raw.githubusercontent.com/swapbyt3s/MySQLBenchmarks/master/primary_key/bigint/bigint.svg?sanitize=true)
+![BINARY](https://raw.githubusercontent.com/swapbyt3s/MySQLBenchmarks/master/primary_key/binary/binary.svg?sanitize=true)
+![CHAR](https://raw.githubusercontent.com/swapbyt3s/MySQLBenchmarks/master/primary_key/char/char.svg?sanitize=true)
+![VARCHAR](https://raw.githubusercontent.com/swapbyt3s/MySQLBenchmarks/master/primary_key/varchar/varchar.svg?sanitize=true)

primary_key/bigint/bigint.pg

@@ -1,4 +1,4 @@
-#!/usr/local/bin/gnuplot
+#!/usr/bin/gnuplot
 reset
 
 # Titles & Axis Labels

primary_key/bigint/bigint.sh

@@ -1,35 +1,38 @@
 #!/bin/bash
 # encoding: UTF-8
 
+set -e
+
 ./insert.lua \
+  --mysql-host=$MYSQL_HOST \
   --mysql-password=sbtest \
-  prepare
+  prepare > /dev/null
 
 ./insert.lua \
+  --mysql-host=$MYSQL_HOST \
   --mysql-password=sbtest \
   --threads=1 \
   --report-interval=1 \
-  --max-time=300 \
+  --max-time=1800 \
   run > insert.log
 
 ./select.lua \
+  --mysql-host=$MYSQL_HOST \
   --mysql-password=sbtest \
   --threads=1 \
   --report-interval=1 \
-  --max-time=300 \
-  --thread-init-timeout=120 \
+  --max-time=1800 \
   run > select.log
 
 ./insert.lua \
+  --mysql-host=$MYSQL_HOST \
   --mysql-password=sbtest \
-  cleanup
+  cleanup > /dev/null
 
-cat insert.log | egrep '\d+\;\d+\.\d+\;\d+\;\d+\.\d+' > insert.csv
-cat select.log | egrep '\d+\;\d+\.\d+\;\d+\.\d+' > select.csv
+cat insert.log | grep -Eo '[0-9]*;[0-9]*.[0-9]*' > insert.csv
+cat select.log | grep -Eo '[0-9]*;[0-9]*.[0-9]*' > select.csv
 
 ./bigint.pg
 
-open -a "Gapplin" bigint.svg
-
 rm insert{.log,.csv}
 rm select{.log,.csv}