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| author | Andreas Hansson <andreas.hansson@arm.com> | 2016-05-26 11:56:24 +0100 |
|---|---|---|
| committer | Andreas Hansson <andreas.hansson@arm.com> | 2016-05-26 11:56:24 +0100 |
| commit | d023b7e8dba012298d6396ae4734755ce1f194d1 (patch) | |
| tree | 005786bcb0cacb7c19be628a1cea09e89190f90e /src/cpu/testers/traffic_gen/TrafficGen.py | |
| parent | 4ff4f9c531feb99561105117b6ceeb4eb85d7829 (diff) | |
| download | gem5-d023b7e8dba012298d6396ae4734755ce1f194d1.tar.xz | |
cpu: Add a basic progress check to the TrafficGen
This patch adds a progress check to the TrafficGen so that it is
easier to detect deadlock scenarios where the generator gets stuck
waiting for a retry, and makes no further progress.
Change-Id: Ifb8779ad0939f52c0518d0e867bac73f99b82e2b
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-by: Radhika Jagtap <radhika.jagtap@arm.com>
Diffstat (limited to 'src/cpu/testers/traffic_gen/TrafficGen.py')
| -rw-r--r-- | src/cpu/testers/traffic_gen/TrafficGen.py | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/src/cpu/testers/traffic_gen/TrafficGen.py b/src/cpu/testers/traffic_gen/TrafficGen.py index f29cedb3a..1a6a6359c 100644 --- a/src/cpu/testers/traffic_gen/TrafficGen.py +++ b/src/cpu/testers/traffic_gen/TrafficGen.py @@ -1,4 +1,4 @@ -# Copyright (c) 2012 ARM Limited +# Copyright (c) 2012, 2016 ARM Limited # All rights reserved. # # The license below extends only to copyright in the software and shall @@ -77,3 +77,9 @@ class TrafficGen(MemObject): # are not immediately accepted elastic_req = Param.Bool(False, "Slow down requests in case of backpressure") + + # Let the user know if we have waited for a retry and not made any + # progress for a long period of time. The default value is + # somewhat arbitrary and may well have to be tuned. + progress_check = Param.Latency('1ms', "Time before exiting " \ + "due to lack of progress") |