[转帖]dd 自动压测与结果解析脚本

测试串行、并发、读、写 4类操作，每类操作又可以指定各种bs及count值，循环压测。每种场景一般执行3次，取平均值。

一、 串行写

#!/bin/sh





 





bs_list=(256k 1024k 10M 20M 50M 100M 1G)





cnt_list=(40000 10000 1000 500 200 100 10)





 





for i in {0..6}





do





 





for j in {0..2}





do





 





logfile=dd_${bs_list[$i]}_cnt${cnt_list[$i]}_${j}.txt





 





echo -e "test ${j} started\n" > $logfile





echo -e "started time `date`\n" >> $logfile





 





dd if=/dev/zero of=testfile1 bs=${bs_list[$i]} count=${cnt_list[$i]} oflag=direct,nonblock 2>> $logfile





 





echo -e "\nfinished time `date`" >> $logfile





echo -e "\ntest ${j} finished" >> $logfile





sleep 5





 





done





 





sleep 30





done

二、 4并发写

#!/bin/sh





 





# ddtest_write_conc.sh





 





bs_list=(256k 1024k 10M 20M 50M 100M 1G)





cnt_list=(40000 10000 1000 500 200 100 10)





 





for i in {0..6}





do





 





for j in {0..2}





do





 





logfile=dd_conc_${bs_list[$i]}_cnt${cnt_list[$i]}_${j}.txt





 





echo -e "test ${j} started\n" > $logfile





echo -e "started time `date`\n" >> $logfile





 





for conc in {0..3}





do





{





dd if=/dev/zero of=testfile1 bs=${bs_list[$i]} count=${cnt_list[$i]} oflag=direct,nonblock 2>> $logfile





} &





done





 





wait





 





echo -e "\nfinished time `date`" >> $logfile





echo -e "\ntest ${j} finished" >> $logfile





sleep 5





 





done





 





sleep 30





done

三、 串行读

 #!/bin/sh





 





# ddtest_read_serial.sh





 





bs_list=(256k 1024k 10M 20M 50M 100M 1G)





cnt_list=(40000 10000 1000 500 200 100 10)





 





for i in {0..6}





do





 





for j in {0..2}





do





 





logfile=dd_${bs_list[$i]}_cnt${cnt_list[$i]}_${j}.txt





 





echo -e "test ${j} started\n" > $logfile





echo -e "started time `date`\n" >> $logfile





 





dd if=testfile1 of=/dev/null bs=${bs_list[$i]} count=${cnt_list[$i]} iflag=direct,nonblock 2>> $logfile





 





echo -e "\nfinished time `date`" >> $logfile





echo -e "\ntest ${j} finished" >> $logfile





sleep 5





 





done





 





sleep 30





done

四、 4并发读

#!/bin/sh





 





bs_list=(256k 1024k 10M 20M 50M 100M 1G)





cnt_list=(40000 10000 1000 500 200 100 10)





 





for i in {0..6}





do





 





for j in {0..2}





do





 





logfile=dd_conc_${bs_list[$i]}_cnt${cnt_list[$i]}_${j}.txt





 





echo -e "test ${j} started\n" > $logfile





echo -e "started time `date`\n" >> $logfile





 





for conc in {0..3}





do





{





dd if=testfile1 of=/dev/null bs=${bs_list[$i]} count=${cnt_list[$i]} iflag=direct,nonblock 2>> $logfile





} &





done





 





wait





 





echo -e "\nfinished time `date`" >> $logfile





echo -e "\ntest ${j} finished" >> $logfile





sleep 5





 





done





 





sleep 30





done

五、 输出解析

取执行时间

cat dd_* | grep -E 'MB/s|GB/s' | awk '{ print $6 }'

取吞吐量

cat dd_* | grep -E 'MB/s|GB/s' | awk '{ print $8 }'