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serverId6ccf3fe401505d01-3301b853-368a3c2e-983e90f1-20c466b11a49ee9b165564fc
keyPERF-40

Table of Contents

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In this workflow we are checking the performance of the loading items on instance record (in holdings accordion) workflow running in the Fameflower release.  The series of steps can be found in the attached screencast. 

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columnskey,summary,type,created,updated,due,assignee,reporter,priority,status,resolution
serverId6ccf3fe401505d01-3301b853-368a3c2e-983e90f1-20c466b11a49ee9b165564fc
keyPERF-40
We tested it with 1, 5, 8, and 20 virtual users for 30 minutes.  A longevity test will also be executed to see if there were memory issues.

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Test

Virtual Users

Duration

OKAPI log level

Profiled

Ramp up (total time

in seconds)

1. 

1

30 min

INFO

No

1

2. 

5

30 min

INFO

No

50

3. 

8

30 min

INFO

No

80

4. 

20

30 min

INFO

No

200

5. 

1

30 min

INFO

Yes

1

6. 

5

30 min

INFO

Yes

50

7. 

8

30 min

INFO

Yes

80

8. 

20

30 min

INFO

Yes

200

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  1. Overall load items workflow time in seconds


    		Average 50th %tile 75th %tile95th %tile 
    1 user14.39 s14.39 s14.39 s14.39 s
    5 users46.30 s45.75 s46.57 s46.59 s
    8 users1.24 min1.21 min1.25 min1.25 min
    20 users3.10 min3.05 min3.12 min3.12 min


  2. Slow APIs taking more than 100 ms to return

    API1 user (75th %tile)5 users (75th %tile)8 users (75th %tile)20 Users (75th %tile)
    InventoryLoading items on instance record (in holdings accordion)
    GET source-storage/formattedRecords/{id}5.32 s19.92 s34.83 s1.46 min

    GET inventory/instances keyword all "aba"

    		355.60 ms753.86 ms909.02 ms2.87 s
    GET locations221.09 ms142.89 ms152.26 ms205.71 ms
    GET inventory/items164.45 ms251.71 ms286.87 ms405.85 ms
    GET inventory/instances/{id}119.93 ms115.98 ms123.88 ms131.89 ms
    Check Out
    POST circulation/check-out-by-barcode679.72 ms1.04 s1.11 s1.45 s
    GET circulation/loans221.95 ms254.08 ms251.45 ms256.18 ms
    GET circulation/requests81.77 ms212.38 ms257.80 ms443.79 ms
    GET inventory/items164.45 ms251.71 ms286.87 ms405.85 ms


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There aren't any WARNING statements of missing indexes in mod-inventory-storage, mod-source-record-storage modules.

The following WARNING statements of missing indexes were generated during a test run and logged by mod-circulation-storage:

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Slowest queries which took the most of execution time were initiated by the mod_source_record_storage, mod-inventory-storage and mod_circulation_storage services presented in the following table:


Percent of total time

Average Time,ms

Calls

Module

Query

52%20,855 ms 1,325mod_source_record_storage

select get_record_by_external_id($1, $2)

Examples:

EXPLAINANALYZEselect get_record_by_external_id('89a7ec1c-608f-4d24-90b6-57da21557874', 'instanceId')

EXPLAIN ANALYZE select get_record_by_external_id('1abdfd67-a4c3-46ba-a66b-82619f633e9a', 'instanceId')

EXPLAIN ANALYZE select get_record_by_external_id('ff2f06c1-caf7-427a-9544-d8716eda90a6', 'instanceId')

0.8%669 ms658mod_inventory_storage

WITH headrecords AS ( SELECT jsonb, lower(f_unaccent(jsonb->>$1)) AS title FROM fs09000000_mod_inventory_storage.instance WHERE (to_tsvector($2, f_unaccent(concat_space_sql(instance.jsonb->>$3 , concat_array_object_values(instance.jsonb->$4,$5) , concat_array_object_values(instance.jsonb->$6,$7)))) @@ (to_tsquery($8, f_unaccent($9)))) ANDleft(lower(f_unaccent(jsonb->>$10)),$11) < ( SELECTleft(lower(f_unaccent(jsonb->>$12)),$13) FROM fs09000000_mod_inventory_storage.instance ORDERBYleft(lower(f_unaccent(jsonb->>'title')),600) OFFSET $14LIMIT $15 ) ORDERBYleft(lower(f_unaccent(jsonb->>$16)),$17) LIMIT $18OFFSET $19 ), allrecords AS ( SELECT jsonb, lower(f_unaccent(jsonb->>$20)) AS title FROM fs09000000_mod_inventory_storage.instance WHERE (to_tsvector($21, f_unaccent(concat_space_sql(instance.jsonb->>$22 , concat_array_object_values(instance.jsonb->$23,$24) , concat_array_object_values(instance.jsonb->$25,$26)))) @@ (to_tsquery($27, f_unaccent($28)))) AND (SELECTCOUNT(*) FROM headrecords) < $29 ) SELECT jsonb, title, $30AScountFROM headrecords WHERE (SELECTCOUNT(*) FROM headrecords) >= $31UNION (SELECT jsonb, title, (SELECTCOUNT(*) FROM allrecords) AScountFROM allrecords ORDERBY title LIMIT $32OFFSET $33 ) ORDERBY title


E.x.

WITH headrecords AS ( SELECT jsonb, lower(f_unaccent(jsonb->>'title')) AS title FROM fs09000000_mod_inventory_storage.instance WHERE (to_tsvector('simple', f_unaccent(concat_space_sql(instance.jsonb->>'title' , concat_array_object_values(instance.jsonb->'contributors','name') , concat_array_object_values(instance.jsonb->'identifiers','value')))) @@ (to_tsquery('simple', f_unaccent('''aba''')))) AND left(lower(f_unaccent(jsonb->>'title')),600) < ( SELECT left(lower(f_unaccent(jsonb->>'title')),600) FROM fs09000000_mod_inventory_storage.instance ORDER BY left(lower(f_unaccent(jsonb->>'title')),600) OFFSET 10000 LIMIT 1 ) ORDER BY left(lower(f_unaccent(jsonb->>'title')),600) LIMIT 100 OFFSET 0 ), allrecords AS ( SELECT jsonb, lower(f_unaccent(jsonb->>'title')) AS title FROM fs09000000_mod_inventory_storage.instance WHERE (to_tsvector('simple', f_unaccent(concat_space_sql(instance.jsonb->>'title' , concat_array_object_values(instance.jsonb->'contributors','name') , concat_array_object_values(instance.jsonb->'identifiers','value')))) @@ (to_tsquery('simple', f_unaccent('''aba''')))) AND (SELECT COUNT(*) FROM headrecords) < 100 ) SELECT jsonb, title, 0 AS count FROM headrecords WHERE (SELECT COUNT(*) FROM headrecords) >= 100 UNION (SELECT jsonb, title, (SELECT COUNT(*) FROM allrecords) AS count FROM allrecords ORDER BY title LIMIT 100 OFFSET 0 ) ORDER BY title

0.8%214 ms1,918mod_circulation_storage

SELECT COUNT(*) FROM (SELECT jsonb,id FROM fs09000000_mod_circulation_storage.request WHERE (to_tsvector($1, f_unaccent(request.jsonb->>$2)) @@ replace((to_tsquery($3, f_unaccent($4)))::text, $5, $6)::tsquery) AND (to_tsvector($7, f_unaccent(request.jsonb->>$8)) @@ replace((to_tsquery($9, f_unaccent($10)))::text, $11, $12)::tsquery) LIMIT $13) x

E.x.

SELECT COUNT(*) FROM (SELECT jsonb,id FROM fs09000000_mod_circulation_storage.request WHERE (to_tsvector('simple', f_unaccent(request.jsonb->>'requesterId')) @@ replace((to_tsquery('simple', f_unaccent('''c2d0fc7d-85a9-4527-945d-6e5e29e74efc''')))::text, '&', '<->')::tsquery) AND (to_tsvector('simple', f_unaccent(request.jsonb->>'status')) @@ replace((to_tsquery('simple', f_unaccent('''Open''')))::text, '&', '<->')::tsquery) LIMIT 100) x

0.6%177 ms1,914mod_inventory_storage

SELECTCOUNT(*) FROM (SELECT jsonb,idFROM fs09000000_mod_inventory_storage.item WHERElower(f_unaccent(item.jsonb->>$1)) LIKElower(f_unaccent($2)) LIMIT $3) x

E.x.

SELECT COUNT(*) FROM (SELECT jsonb,id FROM fs09000000_mod_inventory_storage.item WHERE lower(f_unaccent(item.jsonb->>'barcode')) LIKE lower(f_unaccent('19878861')) LIMIT 1) x

0.6%165 ms1,914mod_inventory_storage

SELECT jsonb,idFROM fs09000000_mod_inventory_storage.item WHERElower(f_unaccent(item.jsonb->>$1)) LIKElower(f_unaccent($2)) LIMIT $3OFFSET $4

E.x.

SELECT jsonb,idFROM fs09000000_mod_inventory_storage.item WHERE lower(f_unaccent(item.jsonb->>'barcode')) LIKE lower(f_unaccent('19878861')) LIMIT 1 OFFSET 0


CPU Utilization


1 user5 users8 users20 users

Average %Range %Average %Range %Average %Range %Average %Range %
Okapi2.120.29-8.942.871.56-13.652.780.31-16.822.850.32-11.65
mod-inventory0.840.31-14.820.680.30-4.010.670.26-7.790.650.27-3.72
mod-inventory-storage1.590.33-8.171.870.56-9.251.810.24-9.151.780.25-23.28
mod-circulation0.670.24-4.120.820.48-4.440.960.26-4.040.820.28-4.12
mod-circulation-storage0.710.25-6.600.740.31-2.790.860.29-3.270.710.27-2.50
mod-source-record-storage0.340.23-1.430.500.26-1.860.530.31-2.410.430.29-1.92

...

  • The following JIRAs have been created for mod_source_record_storage:

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serverId6ccf3fe401505d01-3301b853-368a3c2e-983e90f1-20c466b11a49ee9b165564fc
keyMODSOURCE-149

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serverId6ccf3fe401505d01-3301b853-368a3c2e-983e90f1-20c466b11a49ee9b165564fc
keyMODSOURCE-150

  • On average, the performance can be improved by 100%. if we remove redundant "EXPLAIN ANALYZE" query call on mod_source_record_storage module. EXPLAIN ANALYZE statements are debugging statements that added a second execution (along with the first one) therefore increasing the overall time by 100%. 
  • Missing Indexes Warnings are covered by the story
    Jira Legacy
    serverFOLIO Issue TrackerSystem JIRA
    serverId6ccf3fe401505d01-3301b853-368a3c2e-983e90f1-20c466b11a49ee9b165564fc
    keyCIRCSTORE-215
  • In mod-inventory-storage and okapi consider using a more efficient JSON package or calling use the existing jackson serialization calls in a different way to address the item: JVM profiling shows JSON de/serialization operations one of the slowest operations.

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