# Pastebin FXmZ6Ucn
import __pypy__
import itertools

import psutil

from cryptography.hazmat.bindings._openssl import ffi, lib

@ffi.callback("void *(size_t, const char *, int)")
def malloc(size, path, line):
    __pypy__.add_memory_pressure(size)
    return lib.Cryptography_malloc_wrapper(size, path, line)

@ffi.callback("void *(void *, size_t, const char *, int)")
def realloc(ptr, size, path, line):
    __pypy__.add_memory_pressure(size)
    return lib.Cryptography_realloc_wrapper(ptr, size, path, line)

@ffi.callback("void(void *, const char *, int)")
def free(ptr, path, line):
    return lib.Cryptography_free_wrapper(ptr, path, line)

result = lib.Cryptography_CRYPTO_set_mem_functions(malloc, realloc, free)
assert result == 1

from cryptography import x509
from cryptography.hazmat.backends import default_backend


CERTIFICATE = """
-----BEGIN CERTIFICATE-----
MIIFIjCCBAqgAwIBAgISA/laRm/f3AyE6irg+ZvuUlT3MA0GCSqGSIb3DQEBCwUA
MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD
ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xNzA0MjAwMjIxMDBaFw0x
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dGluZy5jb20wggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQC5wxihdb52
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fNg+bVFb4bpOk4+D+gWPJonJVaN9VH9Kjiaks95dCqbewhv4HKP5m73LQncNZtbW
m9RSVVZ9iRfXIG8sP6dNwLADuOhqIw==
-----END CERTIFICATE-----
"""

def work():
    x509.load_pem_x509_certificate(CERTIFICATE, default_backend())


def main():
    p = psutil.Process()
    base_memory = p.memory_info().rss
    for i in itertools.count():
        work()
        if i % 50000 == 0:
            print(p.memory_info().rss - base_memory)


if __name__ == "__main__":
    main()