From f8ff1d82fdf41ba1bce0b3665738abdd64245c40 Mon Sep 17 00:00:00 2001
From: Bas Nijholt <basnijholt@gmail.com>
Date: Fri, 2 Nov 2018 11:41:09 +0100
Subject: [PATCH] report 0% overhead when none of the function results have
returned
Previously it reported 100% which is not a good estimate either.
---
adaptive/runner.py | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/adaptive/runner.py b/adaptive/runner.py
index 1f793467..44fba35d 100644
--- a/adaptive/runner.py
+++ b/adaptive/runner.py
@@ -180,6 +180,10 @@ class BaseRunner(metaclass=abc.ABCMeta):
but is a rough rule of thumb.
"""
t_function = self._elapsed_function_time
+ if t_function == 0:
+ # When no function is done executing, the overhead cannot
+ # reliably be determined, so 0 is the best we can do.
+ return 0
t_total = self.elapsed_time()
return (1 - t_function / t_total) * 100
@@ -426,7 +430,6 @@ class AsyncRunner(BaseRunner):
overhead of the executor. Essentially, this is
``100 * (1 - total_elapsed_function_time / self.elapsed_time())``.
-
Notes
-----
This runner can be used when an async function (defined with
--
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