0c65d1c5fa
Adds a simple python parser to convert .ftrace file into sqlite3 database. The rest of the analysis logic is done through a series of SQL commands that build tables/views/select queries. Bug: 134705245 Test: trace_analyzer some_ftrace_file.trace tmp_file.db Change-Id: I25274e25a0ab1f091ae4e6161e6726e006e346a5
58 lines
1.8 KiB
SQL
58 lines
1.8 KiB
SQL
/*
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* Copyright (C) 2019 The Android Open Source Project
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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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-- filter for atrace writes
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CREATE VIEW IF NOT EXISTS tracing_mark_writes AS
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SELECT *
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FROM raw_ftrace_entries
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WHERE function = 'tracing_mark_write';
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-- split the tracing_mark_write function args by ||s
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DROP TABLE IF exists tracing_mark_write_split_array;
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CREATE TABLE tracing_mark_write_split_array (
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predictorset_id INT REFERENCES raw_ftrace_entries (id),
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predictor_name,
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rest,
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gen,
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UNIQUE(predictorset_id, gen) -- drops redundant inserts into table
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);
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CREATE INDEX "tracing_mark_write_split_array_id" ON tracing_mark_write_split_array (
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predictorset_id COLLATE BINARY COLLATE BINARY
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);
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INSERT INTO tracing_mark_write_split_array
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WITH
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split(predictorset_id, predictor_name, rest, gen) AS (
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-- split by |
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SELECT id, '', function_args || '|', 0 FROM tracing_mark_writes WHERE id
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UNION ALL
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SELECT predictorset_id,
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substr(rest, 0, instr(rest, '|')),
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substr(rest, instr(rest, '|')+1),
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gen + 1
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FROM split
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WHERE rest <> ''),
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split_results AS (
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SELECT * FROM split WHERE predictor_name <> ''
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)
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SELECT * from split_results
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;
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