kopia lustrzana https://github.com/jupyterhub/repo2docker
28 wiersze
759 B
Python
Executable File
28 wiersze
759 B
Python
Executable File
#!/usr/bin/env python3
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"""
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Simplest program that tries to allocate a large amount of RAM.
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malloc lies on Linux by default, so we use memset to force the
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kernel to actually give us real memory.
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NOTE: This file has to be duplicated & present in all the following locations:
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- tests/memlimit/dockerfile/postBuild
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- tests/memlimit/dockerfile/postBuild
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See https://github.com/jupyterhub/repo2docker/issues/160 for reason
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"""
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import os
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from ctypes import c_void_p, cdll, memset
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libc = cdll.LoadLibrary("libc.so.6")
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libc.malloc.restype = c_void_p
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with open("mem_allocate_mb") as f:
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mem_allocate_mb = int(f.read().strip())
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size = 1024 * 1024 * mem_allocate_mb
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print(f"trying to allocate {mem_allocate_mb}MB")
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ret = libc.malloc(size)
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memset(ret, 0, size)
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