ssp: Simple Storage Perf

Shell scripts of hdparm and dd for storage
Ubuntu only (Other linux might work)
For SSD or higher storages (You need edit some values if you use of HDDs)
Free Disk space > 6GB
Very rough measurement (Don't take the results seriously)
I'd like to know your way of measurements with examples. Tell me in issues

Usage

Storage

$ git clone https://github.com/kawa-/ssp.git
$ cd ssp

# Seq read (if sda1 does not exist, rewrite it)
$ ./read-measure.sh 
+ sudo hdparm -tT /dev/sda1
[sudo] password for kawa: 

/dev/sda1:
 Timing cached reads:   25114 MB in  2.00 seconds = 12567.22 MB/sec
 Timing buffered disk reads: 1616 MB in  3.00 seconds = 538.15 MB/sec

# Seq write
$ ./write-seq-measure.sh
+ dd bs=100M count=50 if=/dev/zero of=file4stest oflag=direct
50+0 records in
50+0 records out
5242880000 bytes (5.2 GB, 4.9 GiB) copied, 11.6733 s, 449 MB/s
+ rm file4stest

# Seq random write (if you use HDDs, rewrite 250000 to 2500 in the script)
$ ./write-rand-measure.sh 
+ dd bs=4K count=250000 if=/dev/zero of=file4rtest oflag=direct
250000+0 records in
250000+0 records out
1024000000 bytes (1.0 GB, 977 MiB) copied, 13.4192 s, 76.3 MB/s
+ rm file4rtest

# Memory bandwidth
$ ./memory-bandwidth-measure.sh 
+ dd if=/dev/zero of=/dev/null bs=1M count=100000
100000+0 records in
100000+0 records out
104857600000 bytes (105 GB, 98 GiB) copied, 4.05453 s, 25.9 GB/s

# Done in Ubuntu 16.04 Server on ESXi (i7-3770, SAMSUNG V-NAND SSD 850 EVO 1TB)

CPU frequency

You can watch dynamic CPU frequency.

$ check-cpu-freq.sh  
Every 1.0s: grep MHz /proc/cpuinfo Thu Nov 23 20:21:01 2017

cpu MHz         : 3700.000
cpu MHz         : 3700.000
cpu MHz         : 3700.000
cpu MHz         : 3700.000
cpu MHz         : 3700.000
cpu MHz         : 3700.000
cpu MHz         : 3700.000
cpu MHz         : 3700.000
cpu MHz         : 3700.000
cpu MHz         : 3700.000
cpu MHz         : 3700.000
cpu MHz         : 3700.000