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058276493f
* Adds ddsketch_calc.py which implements a class for DDSketch related calculations * Adds ddsketch_conversion.py for quickly computing a bucket index to a value or vice-versa * Adds ddsketch_compare.py to compute how similar two ddsketch distributions are * Adds export_graph.py to graph the ddsketch distribution outputted from mako The arguments for ddsketch_conversion.py are: -b, --bucket: the bucket index that we need to calculate the value from (optional) -v, --value: the value that we need to calculate the bucket index from (optional) -e, --error_guarantee: the error guarantee for ddsketch (optional, default is 0.005) The arguments for ddsketch_compare.py are: --file1: Path to first ddsketch json --file2: Path to second ddsketch json --txn1: The transaction type for the first file --txn2: The transaction type for the second file --op: The operation name (ex: GRV, GET ...) The arguments for export_graph.py: --file: path to ddsketch distribution --txn, -t: Transaction type from file --title: title for graph (optional, otherwise "Title" is used) --savefig: Path to save the image plot (optional) --op: Which operation to plot
45 lines
1.5 KiB
Python
45 lines
1.5 KiB
Python
#!/usr/bin/env python3
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#
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# ddsketch_conversion.py
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#
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# This source file is part of the FoundationDB open source project
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#
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# Copyright 2013-2022 Apple Inc. and the FoundationDB project authors
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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import argparse
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import ddsketch_calc as dd
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parser = argparse.ArgumentParser(description="Converts values to DDSketch buckets")
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parser.add_argument('-e', '--error_guarantee', help='Error guarantee (default is 0.005)', required=False, type=float)
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parser.add_argument('-v', '--value', help="Value", required=False, type=int)
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parser.add_argument('-b', '--bucket', help='Bucket index', required=False, type=int)
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args = parser.parse_args()
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error = 0.005
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if args.error_guarantee is not None:
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error = args.error_guarantee
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sketch = dd.DDSketch(error)
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if args.value is not None:
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print("Bucket index for ", args.value)
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print(sketch.getIndex(args.value))
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if args.bucket is not None:
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print("Value for bucket ", args.bucket)
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print(sketch.getValue(args.bucket)) |