profile_sdcard.sh revision d6079c62819b4c022fe23e5101ca5382fbedb10f
1d6079c62819b4c022fe23e5101ca5382fbedb10fNicolas Catania#!/bin/bash 2d6079c62819b4c022fe23e5101ca5382fbedb10fNicolas Catania# Copyright 2009, The Android Open Source Project 3d6079c62819b4c022fe23e5101ca5382fbedb10fNicolas Catania# 4d6079c62819b4c022fe23e5101ca5382fbedb10fNicolas Catania# Licensed under the Apache License, Version 2.0 (the "License"); 5d6079c62819b4c022fe23e5101ca5382fbedb10fNicolas Catania# you may not use this file except in compliance with the License. 6d6079c62819b4c022fe23e5101ca5382fbedb10fNicolas Catania# You may obtain a copy of the License at 7d6079c62819b4c022fe23e5101ca5382fbedb10fNicolas Catania# 8d6079c62819b4c022fe23e5101ca5382fbedb10fNicolas Catania# http://www.apache.org/licenses/LICENSE-2.0 9d6079c62819b4c022fe23e5101ca5382fbedb10fNicolas Catania# 10d6079c62819b4c022fe23e5101ca5382fbedb10fNicolas Catania# Unless required by applicable law or agreed to in writing, software 11d6079c62819b4c022fe23e5101ca5382fbedb10fNicolas Catania# distributed under the License is distributed on an "AS IS" BASIS, 12d6079c62819b4c022fe23e5101ca5382fbedb10fNicolas Catania# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13d6079c62819b4c022fe23e5101ca5382fbedb10fNicolas Catania# See the License for the specific language governing permissions and 14d6079c62819b4c022fe23e5101ca5382fbedb10fNicolas Catania# limitations under the License. 15d6079c62819b4c022fe23e5101ca5382fbedb10fNicolas Catania 16d6079c62819b4c022fe23e5101ca5382fbedb10fNicolas Catania# Run a bunch of test on the sdcard to establish a performance profile. 17d6079c62819b4c022fe23e5101ca5382fbedb10fNicolas Catania 18d6079c62819b4c022fe23e5101ca5382fbedb10fNicolas Cataniaprint_kernel() { 19d6079c62819b4c022fe23e5101ca5382fbedb10fNicolas Catania adb shell cat /proc/version 20d6079c62819b4c022fe23e5101ca5382fbedb10fNicolas Catania} 21d6079c62819b4c022fe23e5101ca5382fbedb10fNicolas Cataniaprint_sched_features() { 22d6079c62819b4c022fe23e5101ca5382fbedb10fNicolas Catania adb shell cat /sys/kernel/debug/sched_features 23d6079c62819b4c022fe23e5101ca5382fbedb10fNicolas Catania} 24d6079c62819b4c022fe23e5101ca5382fbedb10fNicolas Catania 25d6079c62819b4c022fe23e5101ca5382fbedb10fNicolas Catania# Use dd to get the raw speed of the card 26d6079c62819b4c022fe23e5101ca5382fbedb10fNicolas Cataniablock_level() { 27d6079c62819b4c022fe23e5101ca5382fbedb10fNicolas Catania true 28d6079c62819b4c022fe23e5101ca5382fbedb10fNicolas Catania} 29d6079c62819b4c022fe23e5101ca5382fbedb10fNicolas Catania 30d6079c62819b4c022fe23e5101ca5382fbedb10fNicolas Catania# Time to run a test vs number of processes 31d6079c62819b4c022fe23e5101ca5382fbedb10fNicolas Cataniascalability() { 32d6079c62819b4c022fe23e5101ca5382fbedb10fNicolas Catania local file="/tmp/sdcard-scalability.txt" 33d6079c62819b4c022fe23e5101ca5382fbedb10fNicolas Catania rm -f ${file} 34d6079c62819b4c022fe23e5101ca5382fbedb10fNicolas Catania echo "# Scalability tests" | tee -a ${file} 35d6079c62819b4c022fe23e5101ca5382fbedb10fNicolas Catania echo "# Kernel: $(print_kernel)" | tee -a ${file} 36d6079c62819b4c022fe23e5101ca5382fbedb10fNicolas Catania echo "# Sched features: $(print_sched_features)" | tee -a ${file} 37d6079c62819b4c022fe23e5101ca5382fbedb10fNicolas Catania echo "# StopWatch scalability total/cumulative duration 0.0 Samples: 1" | tee -a ${file} 38d6079c62819b4c022fe23e5101ca5382fbedb10fNicolas Catania echo "# Process Time" | tee -a ${file} 39d6079c62819b4c022fe23e5101ca5382fbedb10fNicolas Catania for p in $(seq 1 8); do 40d6079c62819b4c022fe23e5101ca5382fbedb10fNicolas Catania adb shell sdcard_perf_test --test=write --procnb=${p} --size=1000 --chunk-size=100 --iterations=50 >/tmp/tmp-sdcard.txt 41d6079c62819b4c022fe23e5101ca5382fbedb10fNicolas Catania local t=$(grep 'write_total' /tmp/tmp-sdcard.txt | tail -n 1 | cut -f 6 -d ' ') 42d6079c62819b4c022fe23e5101ca5382fbedb10fNicolas Catania echo "$p $t" | tee -a ${file} 43d6079c62819b4c022fe23e5101ca5382fbedb10fNicolas Catania done 44d6079c62819b4c022fe23e5101ca5382fbedb10fNicolas Catania 45d6079c62819b4c022fe23e5101ca5382fbedb10fNicolas Catania} 46d6079c62819b4c022fe23e5101ca5382fbedb10fNicolas Catania 47d6079c62819b4c022fe23e5101ca5382fbedb10fNicolas Catania# Readers and writers should not starve each others. 48d6079c62819b4c022fe23e5101ca5382fbedb10fNicolas Cataniafairness() { 49d6079c62819b4c022fe23e5101ca5382fbedb10fNicolas Catania # Check readers finished before writers. 50d6079c62819b4c022fe23e5101ca5382fbedb10fNicolas Catania # Find the time of the last read op. 51d6079c62819b4c022fe23e5101ca5382fbedb10fNicolas Catania # Count how many writes and how many read happend 52d6079c62819b4c022fe23e5101ca5382fbedb10fNicolas Catania # during that period, do the ratio. 53d6079c62819b4c022fe23e5101ca5382fbedb10fNicolas Catania true 54d6079c62819b4c022fe23e5101ca5382fbedb10fNicolas Catania} 55d6079c62819b4c022fe23e5101ca5382fbedb10fNicolas Catania 56d6079c62819b4c022fe23e5101ca5382fbedb10fNicolas Catania####################################################################### 57d6079c62819b4c022fe23e5101ca5382fbedb10fNicolas Catania# MAIN 58d6079c62819b4c022fe23e5101ca5382fbedb10fNicolas Catania 59d6079c62819b4c022fe23e5101ca5382fbedb10fNicolas Cataniaecho "Make sure debugfs is mounted on the device." 60d6079c62819b4c022fe23e5101ca5382fbedb10fNicolas Cataniablock_level 61d6079c62819b4c022fe23e5101ca5382fbedb10fNicolas Cataniascalability 62d6079c62819b4c022fe23e5101ca5382fbedb10fNicolas Cataniafairness 63d6079c62819b4c022fe23e5101ca5382fbedb10fNicolas Catania 64d6079c62819b4c022fe23e5101ca5382fbedb10fNicolas Catania 65