Pipe-ing perf output into a file

Asked Jan 14 '21 at 12:27

Active Jan 14 '21 at 12:27

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I'm trying to obtain a rough idea of the number of flops a python script is generating. I'm using perf as follows:

perf stat -a -e fp_arith_inst_retired.128b_packed_double,fp_arith_inst_retired.128b_packed_single,fp_arith_inst_retired.256b_packed_double,fp_arith_inst_retired.256b_packed_single,fp_arith_inst_retired.scalar_double,fp_arith_inst_retired.scalar_single,fp_assist.any -B  ./abc

Inside my abc script I have the following:

#!/bin/bash

/home/usr/anaconda3/bin/python flops.py

My question is how do I get the output of the command into a file ? I tried appending to the command above > output.txt however it's only the output of the python script that gets inserted into my output.txt. I'd like the result of perf stat ... to be put into a file.

asked Jan 14 '21 at 12:27

Bula

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Have you tried `>output.txt 2>&1`? – oguz ismail Jan 14 '21 at 12:30
It works! If you want to put it as an answer, I'll accept it :) – Bula Jan 14 '21 at 12:31
It has been asked before, at least a hundred times. Let me find a duplicate instead – oguz ismail Jan 14 '21 at 12:32

Pipe-ing perf output into a file

0 Answers0