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crypto: tcrypt - add script tcrypt_speed_compare.py 

Create a script for comparing tcrypt speed test logs.
The script will systematically analyze differences item
by item and provide a summary (average).
This tool is useful for evaluating the stability of
cryptographic module algorithms and assisting with
performance optimization.

Please note that for such a comparison, stability depends
on whether we allow frequency to float or pin the frequency.

The script produces comparisons in two scenes:

1. For operations in seconds
================================================================================
rfc4106(gcm(aes)) (pcrypt(rfc4106(gcm_base(ctr(aes-generic),ghash-generic))))
                         encryption
--------------------------------------------------------------------------------
bit key | byte blocks | base ops    | new ops     | differ(%)
160     | 16          | 66439       | 63063       | -5.08
160     | 64          | 62220       | 57439       | -7.68
...
288     | 4096        | 15059       | 16278       | 8.09
288     | 8192        | 9043        | 9526        | 5.34
--------------------------------------------------------------------------------
average differ(%s)    | total_differ(%)
--------------------------------------------------------------------------------
5.70                  | -4.49
================================================================================

2. For avg cycles of operation
================================================================================
rfc4106(gcm(aes)) (pcrypt(rfc4106(gcm_base(ctr(aes-generic),ghash-generic))))
                         encryption
--------------------------------------------------------------------------------
bit key | byte blocks | base cycles | new cycles  | differ(%)
160     | 16          | 32500       | 35847       | 10.3
160     | 64          | 33175       | 45808       | 38.08
...
288     | 4096        | 131369      | 132132      | 0.58
288     | 8192        | 229503      | 234581      | 2.21
--------------------------------------------------------------------------------
average differ(%s)    | total_differ(%)
--------------------------------------------------------------------------------
8.41                  | -6.70
================================================================================

Signed-off-by: WangJinchao <wangjinchao@xfusion.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
WangJinchao 2023-12-18 21:15:01 +08:00 committed by Herbert Xu
parent 3139ebf70a
commit bfcec4c65b
2 changed files with 196 additions and 0 deletions
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6
MAINTAINERS
View File

@ -5536,6 +5536,12 @@ F: include/crypto/
F: include/linux/crypto*
F: lib/crypto/
CRYPTO SPEED TEST COMPARE
M: Wang Jinchao <wangjinchao@xfusion.com>
L: linux-crypto@vger.kernel.org
S: Maintained
F: tools/crypto/tcrypt/tcrypt_speed_compare.py
CRYPTOGRAPHIC RANDOM NUMBER GENERATOR
M: Neil Horman <nhorman@tuxdriver.com>
L: linux-crypto@vger.kernel.org

190
tools/crypto/tcrypt/tcrypt_speed_compare.py Executable file
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@ -0,0 +1,190 @@
#!/usr/bin/env python3
# SPDX-License-Identifier: GPL-2.0
#
# Copyright (C) xFusion Digital Technologies Co., Ltd., 2023
#
# Author: Wang Jinchao <wangjinchao@xfusion.com>
#
"""
A tool for comparing tcrypt speed test logs.
Please note that for such a comparison, stability depends
on whether we allow frequency to float or pin the frequency.
Both support tests for operations within one second and
cycles of operation.
For example, use it in the bash script below.
```bash
#!/bin/bash
# log file prefix
seq_num=0
# When sec=0, it will perform cycle tests;
# otherwise, it indicates the duration of a single test
sec=0
num_mb=8
mode=211
# base speed test
lsmod | grep pcrypt && modprobe -r pcrypt
dmesg -C
modprobe tcrypt alg="pcrypt(rfc4106(gcm(aes)))" type=3
modprobe tcrypt mode=${mode} sec=${sec} num_mb=${num_mb}
dmesg > ${seq_num}_base_dmesg.log
# new speed test
lsmod | grep pcrypt && modprobe -r pcrypt
dmesg -C
modprobe tcrypt alg="pcrypt(rfc4106(gcm(aes)))" type=3
modprobe tcrypt mode=${mode} sec=${sec} num_mb=${num_mb}
dmesg > ${seq_num}_new_dmesg.log
lsmod | grep pcrypt && modprobe -r pcrypt
tools/crypto/tcrypt/tcrypt_speed_compare.py \
${seq_num}_base_dmesg.log \
${seq_num}_new_dmesg.log \
>${seq_num}_compare.log
grep 'average' -A2 -B0 --group-separator="" ${seq_num}_compare.log
```
"""
import sys
import re
def parse_title(line):
pattern = r'tcrypt: testing speed of (.*?) (encryption|decryption)'
match = re.search(pattern, line)
if match:
alg = match.group(1)
op = match.group(2)
return alg, op
else:
return "", ""
def parse_item(line):
pattern_operations = r'\((\d+) bit key, (\d+) byte blocks\): (\d+) operations'
pattern_cycles = r'\((\d+) bit key, (\d+) byte blocks\): 1 operation in (\d+) cycles'
match = re.search(pattern_operations, line)
if match:
res = {
"bit_key": int(match.group(1)),
"byte_blocks": int(match.group(2)),
"operations": int(match.group(3)),
}
return res
match = re.search(pattern_cycles, line)
if match:
res = {
"bit_key": int(match.group(1)),
"byte_blocks": int(match.group(2)),
"cycles": int(match.group(3)),
}
return res
return None
def parse(filepath):
result = {}
alg, op = "", ""
with open(filepath, 'r') as file:
for line in file:
if not line:
continue
_alg, _op = parse_title(line)
if _alg:
alg, op = _alg, _op
if alg not in result:
result[alg] = {}
if op not in result[alg]:
result[alg][op] = []
continue
parsed_result = parse_item(line)
if parsed_result:
result[alg][op].append(parsed_result)
return result
def merge(base, new):
merged = {}
for alg in base.keys():
merged[alg] = {}
for op in base[alg].keys():
if op not in merged[alg]:
merged[alg][op] = []
for index in range(len(base[alg][op])):
merged_item = {
"bit_key": base[alg][op][index]["bit_key"],
"byte_blocks": base[alg][op][index]["byte_blocks"],
}
if "operations" in base[alg][op][index].keys():
merged_item["base_ops"] = base[alg][op][index]["operations"]
merged_item["new_ops"] = new[alg][op][index]["operations"]
else:
merged_item["base_cycles"] = base[alg][op][index]["cycles"]
merged_item["new_cycles"] = new[alg][op][index]["cycles"]
merged[alg][op].append(merged_item)
return merged
def format(merged):
for alg in merged.keys():
for op in merged[alg].keys():
base_sum = 0
new_sum = 0
differ_sum = 0
differ_cnt = 0
print()
hlen = 80
print("="*hlen)
print(f"{alg}")
print(f"{' '*(len(alg)//3) + op}")
print("-"*hlen)
key = ""
if "base_ops" in merged[alg][op][0]:
key = "ops"
print(f"bit key | byte blocks | base ops | new ops | differ(%)")
else:
key = "cycles"
print(f"bit key | byte blocks | base cycles | new cycles | differ(%)")
for index in range(len(merged[alg][op])):
item = merged[alg][op][index]
base_cnt = item[f"base_{key}"]
new_cnt = item[f"new_{key}"]
base_sum += base_cnt
new_sum += new_cnt
differ = round((new_cnt - base_cnt)*100/base_cnt, 2)
differ_sum += differ
differ_cnt += 1
bit_key = item["bit_key"]
byte_blocks = item["byte_blocks"]
print(
f"{bit_key:<7} | {byte_blocks:<11} | {base_cnt:<11} | {new_cnt:<11} | {differ:<8}")
average_speed_up = "{:.2f}".format(differ_sum/differ_cnt)
ops_total_speed_up = "{:.2f}".format(
(base_sum - new_sum) * 100 / base_sum)
print('-'*hlen)
print(f"average differ(%s) | total_differ(%)")
print('-'*hlen)
print(f"{average_speed_up:<21} | {ops_total_speed_up:<10}")
print('='*hlen)
def main(base_log, new_log):
base = parse(base_log)
new = parse(new_log)
merged = merge(base, new)
format(merged)
if __name__ == "__main__":
if len(sys.argv) != 3:
print(f"usage: {sys.argv[0]} base_log new_log")
exit(-1)
main(sys.argv[1], sys.argv[2])