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Add script to merge the JSON files produced by the FastTimerService #44836

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Merged
cmsbuild merged 1 commit into from
Apr 24, 2024
Merged

Add script to merge the JSON files produced by the FastTimerService #44836

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57 changes: 57 additions & 0 deletions HLTrigger/Timer/scripts/mergeResourcesJson.py
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Original file line number Diff line number Diff line change
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#! /usr/bin/env python3

import sys
import json

usage = """Usage: mergeResourceJson.py FILE [FILE ...]

Merge the content of multiple "resources.json" files produced by the FastTimerService,
and print the result to standard output.

Example:
mergeResourceJson.py step*/pid*/resources.json > resources.json
"""

def merge_into(metrics, data, dest):
dest["events"] += data["events"]
for metric in metrics:
dest[metric] += data[metric]


if len(sys.argv) == 1:
print(usage)
sys.exit(1)

if '-h' in sys.argv[1:] or '--help' in sys.argv[1:]:
print(usage)
sys.exit(0)

with open(sys.argv[1]) as f:
output = json.load(f)

metrics = [ label for resource in output["resources"] for label in resource ]

datamap = { module["type"] + '|' + module["label"] : module for module in output["modules"] }

for arg in sys.argv[2:]:
with open(arg) as f:
input = json.load(f)

if output["resources"] != input["resources"]:
print("Error: input files describe different metrics")
sys.exit(1)

if output["total"]["label"] != input["total"]["label"]:
print("Warning: input files describe different process names")
merge_into(metrics, input["total"], output["total"])

for module in input["modules"]:
key = module["type"] + '|' + module["label"]
if key in datamap:
merge_into(metrics, module, datamap[key])
else:
datamap[key] = module
output["modules"].append(datamap[key])

json.dump(output, sys.stdout, indent = 2 )
sys.stdout.write('\n')