Python 如果你通过了-v，你就可以得到这些信息。请参阅下面的最大驻留集大小，它是程序执行期间使用的最大（峰值）真实（非虚拟）内存： $ /usr/bin/time -v ls / Command being timed: "ls /" User
如果你通过了-v，你就可以得到这些信息。请参阅下面的Python 如果你通过了-v，你就可以得到这些信息。请参阅下面的最大驻留集大小，它是程序执行期间使用的最大（峰值）真实（非虚拟）内存： $ /usr/bin/time -v ls / Command being timed: "ls /" User ,python,memory-management,Python,Memory Management,如果你通过了-v，你就可以得到这些信息。请参阅下面的最大驻留集大小，它是程序执行期间使用的最大（峰值）真实（非虚拟）内存： $ /usr/bin/time -v ls / Command being timed: "ls /" User time (seconds): 0.00 System time (seconds): 0.01 Percent of CPU this job got: 250% Elapsed (wall clock) time (
最大驻留集大小$ /usr/bin/time -v ls /
Command being timed: "ls /"
User time (seconds): 0.00
System time (seconds): 0.01
Percent of CPU this job got: 250%
Elapsed (wall clock) time (h:mm:ss or m:ss): 0:00.00
Average shared text size (kbytes): 0
Average unshared data size (kbytes): 0
Average stack size (kbytes): 0
Average total size (kbytes): 0
Maximum resident set size (kbytes): 0
Average resident set size (kbytes): 0
Major (requiring I/O) page faults: 0
Minor (reclaiming a frame) page faults: 315
Voluntary context switches: 2
Involuntary context switches: 0
Swaps: 0
File system inputs: 0
File system outputs: 0
Socket messages sent: 0
Socket messages received: 0
Signals delivered: 0
Page size (bytes): 4096
Exit status: 0
Windows代码对我不起作用。此更改是：
return int（result[0]。WorkingSet）psutilpspsutilpsutil.Process（）psutil.Process（os.getpid（））print（process.memory\u info（）.vms）ps aux | awk'/python/{sum+=6}；结束{print sum/1024“MB”}time/usr/bin/timeimport os
_proc_status = '/proc/%d/status' % os.getpid()
_scale = {'kB': 1024.0, 'mB': 1024.0*1024.0, 'KB': 1024.0, 'MB': 1024.0*1024.0}
def _VmB(VmKey):
'''Private.'''
global _proc_status, _scale
# get pseudo file /proc/<pid>/status
try:
t = open(_proc_status)
v = t.read()
t.close()
except:
return 0.0 # non-Linux?
# get VmKey line e.g. 'VmRSS: 9999 kB\n ...'
i = v.index(VmKey)
v = v[i:].split(None, 3) # whitespace
if len(v) < 3:
return 0.0 # invalid format?
# convert Vm value to bytes
return float(v[1]) * _scale[v[2]]
def memory(since=0.0):
'''Return memory usage in bytes.'''
return _VmB('VmSize:') - since
def resident(since=0.0):
'''Return resident memory usage in bytes.'''
return _VmB('VmRSS:') - since
def stacksize(since=0.0):
'''Return stack size in bytes.'''
return _VmB('VmStk:') - since
>>> resource.getrusage(resource.RUSAGE_SELF).ru_maxrss
2656 # peak memory usage (kilobytes on Linux, bytes on OS X)
float(sh.awk(sh.ps('u','-p',os.getpid()),'{sum=sum+$6}; END {print sum/1024}'))
import os, psutil
process = psutil.Process(os.getpid())
print(process.memory_info().rss) # in bytes
print(process.memory_info()[0])
import os, psutil; print(psutil.Process(os.getpid()).memory_info().rss / 1024 ** 2)
import os, win32api, win32con, win32process
han = win32api.OpenProcess(win32con.PROCESS_QUERY_INFORMATION|win32con.PROCESS_VM_READ, 0, os.getpid())
process_memory = int(win32process.GetProcessMemoryInfo(han)['WorkingSetSize'])
# Megabyte.
$ ps aux | grep python | awk '{sum=sum+$6}; END {print sum/1024 " MB"}'
87.9492 MB
# Byte.
$ ps aux | grep python | awk '{sum=sum+$6}; END {print sum " KB"}'
90064 KB
$ ps aux | grep python
root 943 0.0 0.1 53252 9524 ? Ss Aug19 52:01 /usr/bin/python /usr/local/bin/beaver -c /etc/beaver/beaver.conf -l /var/log/beaver.log -P /var/run/beaver.pid
root 950 0.6 0.4 299680 34220 ? Sl Aug19 568:52 /usr/bin/python /usr/local/bin/beaver -c /etc/beaver/beaver.conf -l /var/log/beaver.log -P /var/run/beaver.pid
root 3803 0.2 0.4 315692 36576 ? S 12:43 0:54 /usr/bin/python /usr/local/bin/beaver -c /etc/beaver/beaver.conf -l /var/log/beaver.log -P /var/run/beaver.pid
jonny 23325 0.0 0.1 47460 9076 pts/0 S+ 17:40 0:00 python
jonny 24651 0.0 0.0 13076 924 pts/4 S+ 18:06 0:00 grep python
import time
import os
import psutil
def elapsed_since(start):
return time.strftime("%H:%M:%S", time.gmtime(time.time() - start))
def get_process_memory():
process = psutil.Process(os.getpid())
return process.memory_info().rss
def track(func):
def wrapper(*args, **kwargs):
mem_before = get_process_memory()
start = time.time()
result = func(*args, **kwargs)
elapsed_time = elapsed_since(start)
mem_after = get_process_memory()
print("{}: memory before: {:,}, after: {:,}, consumed: {:,}; exec time: {}".format(
func.__name__,
mem_before, mem_after, mem_after - mem_before,
elapsed_time))
return result
return wrapper
from utils import track
@track
def list_create(n):
print("inside list create")
return [1] * n
inside list create
list_create: memory before: 45,928,448, after: 46,211,072, consumed: 282,624; exec time: 00:00:00
import os
import psutil
process = psutil.Process(os.getpid())
print(process.memory_percent())
from pathlib import Path
from resource import getpagesize
PAGESIZE = getpagesize()
PATH = Path('/proc/self/statm')
def get_resident_set_size() -> int:
"""Return the current resident set size in bytes."""
# statm columns are: size resident shared text lib data dt
statm = PATH.read_text()
fields = statm.split()
return int(fields[1]) * PAGESIZE
data = []
start_memory = get_resident_set_size()
for _ in range(10):
data.append('X' * 100000)
print(get_resident_set_size() - start_memory)
0
0
368640
368640
368640
638976
638976
909312
909312
909312
$ /usr/bin/time -v ls /
Command being timed: "ls /"
User time (seconds): 0.00
System time (seconds): 0.01
Percent of CPU this job got: 250%
Elapsed (wall clock) time (h:mm:ss or m:ss): 0:00.00
Average shared text size (kbytes): 0
Average unshared data size (kbytes): 0
Average stack size (kbytes): 0
Average total size (kbytes): 0
Maximum resident set size (kbytes): 0
Average resident set size (kbytes): 0
Major (requiring I/O) page faults: 0
Minor (reclaiming a frame) page faults: 315
Voluntary context switches: 2
Involuntary context switches: 0
Swaps: 0
File system inputs: 0
File system outputs: 0
Socket messages sent: 0
Socket messages received: 0
Signals delivered: 0
Page size (bytes): 4096
Exit status: 0