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# Copyright (c) OpenMMLab. All rights reserved.
import time
from .hook import HOOKS, Hook
@HOOKS.register_module()
class IterTimerHook(Hook):
def before_epoch(self, runner):
self.t = time.time()
def before_iter(self, runner):
runner.log_buffer.update({'data_time': time.time() - self.t})
def after_iter(self, runner):
runner.log_buffer.update({'time': time.time() - self.t})
self.t = time.time()
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