From: Ian Jackson <ian.jackson@eu.citrix.com>
To: xen-devel@lists.xenproject.org
Cc: Ian Jackson <ian.jackson@eu.citrix.com>,
George Dunlap <George.Dunlap@citrix.com>
Subject: [OSSTEST PATCH 03/14] schema: Provide indices for sg-report-flight
Date: Tue, 21 Jul 2020 19:41:54 +0100 [thread overview]
Message-ID: <20200721184205.15232-4-ian.jackson@eu.citrix.com> (raw)
In-Reply-To: <20200721184205.15232-1-ian.jackson@eu.citrix.com>
These indexes allow very fast lookup of "relevant" flights eg when
trying to justify failures.
In my ad-hoc test case, these indices (along with the subsequent
changes to sg-report-flight and Executive.pm, reduce the runtime of
sg-report-flight from 2-3ks (unacceptably long!) to as little as
5-7s seconds - a speedup of about 500x.
(Getting the database snapshot may take a while first, but deploying
this code should help with that too by reducing long-running
transactions. Quoted perf timings are from snapshot acquisition.)
Without these new indexes there may be a performance change from the
query changes. I haven't benchmarked this so I am setting the schema
updates to be Preparatory/Needed (ie, "Schema first" as
schema/README.updates has it), to say that the index should be created
before the new code is deployed.
Testing: I have tested this series by creating experimental indices
"trial_..." in the actual production instance. (Transactional DDL was
very helpful with this.) I have verified with \d that schema update
instructions in this commit generate indexes which are equivalent to
the trial indices.
Deployment: AFter these schema updates are applied, the trial indices
are redundant duplicates and should be deleted.
CC: George Dunlap <George.Dunlap@citrix.com>
Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com>
---
schema/runvars-built-index.sql | 7 +++++++
schema/runvars-revision-index.sql | 7 +++++++
schema/steps-job-index.sql | 7 +++++++
3 files changed, 21 insertions(+)
create mode 100644 schema/runvars-built-index.sql
create mode 100644 schema/runvars-revision-index.sql
create mode 100644 schema/steps-job-index.sql
diff --git a/schema/runvars-built-index.sql b/schema/runvars-built-index.sql
new file mode 100644
index 00000000..94f85ed8
--- /dev/null
+++ b/schema/runvars-built-index.sql
@@ -0,0 +1,7 @@
+-- ##OSSTEST## 007 Preparatory
+--
+-- This index helps sg-report-flight find relevant flights.
+
+CREATE INDEX runvars_built_revision_idx
+ ON runvars (val)
+ WHERE name LIKE 'built_revision_%';
diff --git a/schema/runvars-revision-index.sql b/schema/runvars-revision-index.sql
new file mode 100644
index 00000000..a2e3be13
--- /dev/null
+++ b/schema/runvars-revision-index.sql
@@ -0,0 +1,7 @@
+-- ##OSSTEST## 008 Preparatory
+--
+-- This index helps Executive::report__find_test find relevant flights.
+
+CREATE INDEX runvars_revision_idx
+ ON runvars (val)
+ WHERE name LIKE 'revision_%';
diff --git a/schema/steps-job-index.sql b/schema/steps-job-index.sql
new file mode 100644
index 00000000..07dc5a30
--- /dev/null
+++ b/schema/steps-job-index.sql
@@ -0,0 +1,7 @@
+-- ##OSSTEST## 006 Preparatory
+--
+-- This index helps sg-report-flight find if a test ever passed.
+
+CREATE INDEX steps_job_testid_status_idx
+ ON steps (job, testid, status);
+
--
2.20.1
next prev parent reply other threads:[~2020-07-21 18:42 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-21 18:41 [OSSTEST PATCH 00/14] Flight report performance improvements Ian Jackson
2020-07-21 18:41 ` [OSSTEST PATCH 01/14] sg-report-flight: Add a comment re same-flight search narrowing Ian Jackson
2020-07-21 18:41 ` [OSSTEST PATCH 02/14] sg-report-flight: Sort failures by job name as last resort Ian Jackson
2020-07-21 18:41 ` Ian Jackson [this message]
2020-07-21 18:41 ` [OSSTEST PATCH 04/14] sg-report-flight: Ask the db for flights of interest Ian Jackson
2020-07-22 12:10 ` George Dunlap
2020-07-22 14:03 ` Ian Jackson
2020-07-21 18:41 ` [OSSTEST PATCH 05/14] sg-report-flight: Use WITH to use best index use for $flightsq Ian Jackson
2020-07-22 12:47 ` George Dunlap
2020-07-22 14:06 ` Ian Jackson
2020-07-21 18:41 ` [OSSTEST PATCH 06/14] sg-report-flight: Use WITH clause to use index for $anypassq Ian Jackson
2020-07-27 16:15 ` George Dunlap
2020-07-31 10:41 ` Ian Jackson
2020-07-21 18:41 ` [OSSTEST PATCH 07/14] sg-report-flight: Use the job row from the intitial query Ian Jackson
2020-07-21 18:41 ` [OSSTEST PATCH 08/14] Executive: Use index for report__find_test Ian Jackson
2020-07-22 11:33 ` George Dunlap
2020-07-22 13:49 ` Ian Jackson
2020-07-21 18:42 ` [OSSTEST PATCH 09/14] duration_estimator: Ignore truncated jobs unless we know the step Ian Jackson
2020-07-21 18:42 ` [OSSTEST PATCH 10/14] duration_estimator: Introduce some _qtxt variables Ian Jackson
2020-07-21 18:42 ` [OSSTEST PATCH 11/14] duration_estimator: Explicitly provide null in general host q Ian Jackson
2020-07-21 18:42 ` [OSSTEST PATCH 12/14] duration_estimator: Return job column in first query Ian Jackson
2020-07-21 18:42 ` [OSSTEST PATCH 13/14] duration_estimator: Move $uptincl_testid to separate @x_params Ian Jackson
2020-07-21 18:42 ` [OSSTEST PATCH 14/14] duration_estimator: Move duration query loop into database Ian Jackson
2020-07-27 17:43 ` George Dunlap
2020-07-31 10:39 ` Ian Jackson
2020-07-31 10:45 ` George Dunlap
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