xref: /spdk/scripts/perf/nvme/run_fio_test.py (revision 6f338d4bf3a8a91b7abe377a605a321ea2b05bf7) 
1#!/usr/bin/env python3
2
3# This script runs fio benchmark test on the local nvme device using the SPDK NVMe driver.
4# Prework: Run script/setup.sh to bind SSDs to SPDK driver.
5# Prework: Change any fio configurations in the template fio config file fio_test.conf
6# Output: A csv file <hostname>_<num ssds>_perf_output.csv
7
8import subprocess
9from subprocess import check_call, call, check_output, Popen, PIPE
10import random
11import os
12import sys
13import re
14import signal
15import getopt
16from datetime import datetime
17from itertools import *
18import csv
19import itertools
20from shutil import copyfile
21import json
22
23# Populate test parameters into these lists to run different workloads
24# The configuration below runs QD 1 & 128. To add QD 32 set q_depth=['1', '32', '128']
25q_depth = ['1', '128']
26# io_size specifies the size in bytes of the IO workload.
27# To add 64K IOs set io_size = ['4096', '65536']
28io_size = ['4096']
29workload_type = ['randrw']
30mix = ['100']
31core_mask = ['0x1']
32# run_time parameter specifies how long to run each test.
33# Set run_time = ['600'] to run the test for 10 minutes
34run_time = ['60']
35# iter_num parameter is used to run the test multiple times.
36# set iter_num = ['1', '2', '3'] to repeat each test 3 times
37iter_num = ['1']
38
39
40def run_fio(io_size_bytes, qd, rw_mix, cpu_mask, run_num, workload, run_time_sec):
41    print("Running Test: IO Size={} QD={} Mix={} CPU Mask={}".format(io_size_bytes, qd, rw_mix, cpu_mask))
42    string = "s_" + str(io_size_bytes) + "_q_" + str(qd) + "_m_" + str(rw_mix) + "_c_" + str(cpu_mask) + "_run_" + str(run_num)
43
44    # Call fio
45    path_to_fio_conf = config_file_for_test
46    path_to_ioengine = sys.argv[2]
47    command = "BLK_SIZE=" + str(io_size_bytes) + " RW=" + str(workload) + " MIX=" + str(rw_mix) \
48        + " IODEPTH=" + str(qd) + " RUNTIME=" + str(run_time_sec) + " IOENGINE=" + path_to_ioengine \
49        + " fio " + str(path_to_fio_conf) + " -output=" + string + " -output-format=json"
50    output = subprocess.check_output(command, shell=True)
51
52    print("Finished Test: IO Size={} QD={} Mix={} CPU Mask={}".format(io_size_bytes, qd, rw_mix, cpu_mask))
53    return
54
55
56def parse_results(io_size_bytes, qd, rw_mix, cpu_mask, run_num, workload, run_time_sec):
57    results_array = []
58
59    # If json file has results for multiple fio jobs pick the results from the right job
60    job_pos = 0
61
62    # generate the next result line that will be added to the output csv file
63    results = str(io_size_bytes) + "," + str(qd) + "," + str(rw_mix) + "," \
64        + str(workload) + "," + str(cpu_mask) + "," + str(run_time_sec) + "," + str(run_num)
65
66    # Read the results of this run from the test result file
67    string = "s_" + str(io_size_bytes) + "_q_" + str(qd) + "_m_" + str(rw_mix) + "_c_" + str(cpu_mask) + "_run_" + str(run_num)
68    with open(string) as json_file:
69        data = json.load(json_file)
70        job_name = data['jobs'][job_pos]['jobname']
71        # print "FIO job name: ", job_name
72        if 'lat_ns' in data['jobs'][job_pos]['read']:
73            lat = 'lat_ns'
74            lat_units = 'ns'
75        else:
76            lat = 'lat'
77            lat_units = 'us'
78        read_iops = float(data['jobs'][job_pos]['read']['iops'])
79        read_bw = float(data['jobs'][job_pos]['read']['bw'])
80        read_avg_lat = float(data['jobs'][job_pos]['read'][lat]['mean'])
81        read_min_lat = float(data['jobs'][job_pos]['read'][lat]['min'])
82        read_max_lat = float(data['jobs'][job_pos]['read'][lat]['max'])
83        write_iops = float(data['jobs'][job_pos]['write']['iops'])
84        write_bw = float(data['jobs'][job_pos]['write']['bw'])
85        write_avg_lat = float(data['jobs'][job_pos]['write'][lat]['mean'])
86        write_min_lat = float(data['jobs'][job_pos]['write'][lat]['min'])
87        write_max_lat = float(data['jobs'][job_pos]['write'][lat]['max'])
88        print("%-10s" % "IO Size", "%-10s" % "QD", "%-10s" % "Mix",
89              "%-10s" % "Workload Type", "%-10s" % "CPU Mask",
90              "%-10s" % "Run Time", "%-10s" % "Run Num",
91              "%-15s" % "Read IOps",
92              "%-10s" % "Read MBps", "%-15s" % "Read Avg. Lat(" + lat_units + ")",
93              "%-15s" % "Read Min. Lat(" + lat_units + ")", "%-15s" % "Read Max. Lat(" + lat_units + ")",
94              "%-15s" % "Write IOps",
95              "%-10s" % "Write MBps", "%-15s" % "Write Avg. Lat(" + lat_units + ")",
96              "%-15s" % "Write Min. Lat(" + lat_units + ")", "%-15s" % "Write Max. Lat(" + lat_units + ")")
97        print("%-10s" % io_size_bytes, "%-10s" % qd, "%-10s" % rw_mix,
98              "%-10s" % workload, "%-10s" % cpu_mask, "%-10s" % run_time_sec,
99              "%-10s" % run_num, "%-15s" % read_iops, "%-10s" % read_bw,
100              "%-15s" % read_avg_lat, "%-15s" % read_min_lat, "%-15s" % read_max_lat,
101              "%-15s" % write_iops, "%-10s" % write_bw, "%-15s" % write_avg_lat,
102              "%-15s" % write_min_lat, "%-15s" % write_max_lat)
103        results = results + "," + str(read_iops) + "," + str(read_bw) + "," \
104            + str(read_avg_lat) + "," + str(read_min_lat) + "," + str(read_max_lat) \
105            + "," + str(write_iops) + "," + str(write_bw) + "," + str(write_avg_lat) \
106            + "," + str(write_min_lat) + "," + str(write_max_lat)
107        with open(result_file_name, "a") as result_file:
108            result_file.write(results + "\n")
109        results_array = []
110    return
111
112
113def get_nvme_devices_count():
114    output = check_output('lspci | grep -i Non | wc -l', shell=True)
115    return int(output)
116
117
118def get_nvme_devices_bdf():
119    output = check_output('lspci | grep -i Non | awk \'{print $1}\'', shell=True).decode("utf-8")
120    output = output.split()
121    return output
122
123
124def add_filename_to_conf(conf_file_name, bdf):
125    filestring = "filename=trtype=PCIe traddr=0000." + bdf.replace(":", ".") + " ns=1"
126    with open(conf_file_name, "a") as conf_file:
127        conf_file.write(filestring + "\n")
128
129
130if len(sys.argv) != 4:
131    print("usage: " % sys.argv[0] % " path_to_fio_conf path_to_ioengine num_ssds")
132    sys.exit()
133
134num_ssds = int(sys.argv[3])
135if num_ssds > get_nvme_devices_count():
136    print("System does not have {} NVMe SSDs.".format(num_ssds))
137    sys.exit()
138
139host_name = os.uname()[1]
140result_file_name = host_name + "_" + sys.argv[3] + "ssds_perf_output.csv"
141
142bdf = get_nvme_devices_bdf()
143config_file_for_test = sys.argv[1] + "_" + sys.argv[3] + "ssds"
144copyfile(sys.argv[1], config_file_for_test)
145
146# Add the number of threads to the fio config file
147with open(config_file_for_test, "a") as conf_file:
148    conf_file.write("numjobs=" + str(1) + "\n")
149
150# Add the NVMe bdf to the fio config file
151for i in range(0, num_ssds):
152    add_filename_to_conf(config_file_for_test, bdf[i])
153
154# Set up for output
155columns = "IO_Size,Q_Depth,Workload_Mix,Workload_Type,Core_Mask,Run_Time,Run,Read_IOPS,Read_bw(KiB/s), \
156    Read_Avg_lat(us),Read_Min_Lat(us),Read_Max_Lat(us),Write_IOPS,Write_bw(KiB/s),Write_Avg_lat(us), \
157    Write_Min_Lat(us),Write_Max_Lat(us)"
158
159with open(result_file_name, "w+") as result_file:
160    result_file.write(columns + "\n")
161
162for i, (s, q, m, w, c, t) in enumerate(itertools.product(io_size, q_depth, mix, workload_type, core_mask, run_time)):
163    run_fio(s, q, m, c, i, w, t)
164    parse_results(s, q, m, c, i, w, t)
165
166result_file.close()
167