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# to you under the Apache License, Version 2.0 (the
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# with the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
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# pylint: disable=no-else-return, unidiomatic-typecheck, undefined-variable, invalid-name, redefined-builtin
"""
The Relay Virtual Machine profiler.
Provides extra APIs for profiling vm execution.
"""
from tvm.runtime import _ffi_api
from . import vm
def enabled():
"""Whether vm profiler is enabled."""
return hasattr(_ffi_api, "_VirtualMachineDebug")
class VirtualMachineProfiler(vm.VirtualMachine):
"""Relay profile VM runtime."""
def __init__(self, exe, ctx, memory_cfg=None):
super(VirtualMachineProfiler, self).__init__(exe, ctx, memory_cfg)
self.module = _ffi_api._VirtualMachineDebug(exe.module)
self._init = self.module["init"]
self._invoke = self.module["invoke"]
self._get_stat = self.module["get_stat"]
self._set_input = self.module["set_input"]
self._reset = self.module["reset"]
self._setup_ctx(ctx, memory_cfg)
def get_stat(self, sort_by_time=True):
"""Get the statistics of executed ops.
Parameters
----------
sort_by_time: Optional[Boolean]
Set to indicate the returned results are sorted by execution time in
the descending order. It is printed in the random order if this
field is not set.
Returns
-------
The execution statistics in string.
"""
return self._get_stat(sort_by_time)
def reset(self):
self._reset()