Source code for hysop.core.memory.mem_utils

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import resource, psutil
from psutil import virtual_memory


[docs] def disable_vmem(): physical_memory = psutil.virtual_memory().total _, vmem_hard = resource.getrlimit(resource.RLIMIT_AS) vmem_soft = max(0.95 * physical_memory, physical_memory - 512 * 1024 * 1024) if vmem_hard != resource.RLIM_INFINITY: vmem_soft = min(vmem_soft, vmem_hard) vmem_hard = vmem_soft resource.setrlimit(resource.RLIMIT_AS, (vmem_soft, vmem_hard)) return (vmem_soft, vmem_hard)
[docs] def memory_repport(): from hysop.tools.units import bytes2str vmem = psutil.virtual_memory() ss = "== Memory Repport ==" ss += "\n Virtual memory mapping:" for attr in [ "total", "available", "used", "free", "active", "inactive", "buffers", "cached", "shared", ]: val = getattr(vmem, attr) ss += f"\n *{attr:<10} {bytes2str(val)}" ss += "\n" ss += "\n Memory resource limits (soft/hard):" for attr in [ "RLIMIT_AS", "RLIMIT_DATA", "RLIMIT_MEMLOCK", "RLIMIT_RSS", "RLIMIT_STACK", ]: soft, hard = resource.getrlimit(getattr(resource, attr)) soft = "INFTY" if soft == resource.RLIM_INFINITY else bytes2str(soft) hard = "INFTY" if hard == resource.RLIM_INFINITY else bytes2str(hard) ss += f"\n *{attr:<15} {soft:<8} / {hard:<8}" ss += "\n====================" return ss