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Mem management take2 #232

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Mem management take2 #232

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776a12b
remove columns to keep it narrow
mneedham Jun 24, 2020
f13232f
update image
mneedham Jun 24, 2020
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22 changes: 11 additions & 11 deletions in-production/memory-management/memory-management.adoc
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Expand Up @@ -66,7 +66,7 @@ That memory usage is broken down across the following operators:
* `Sort` - 16,687,456 bytes
* `NodeByLabelScan` - 64 bytes
Alternatively, we can run the query in the link:{opsmanual}/tools/cypher-shell/[Cypher Shell^], which returns the following output (results excluded for brevity):
Alternatively, we can run the query in the link:{opsmanual}/tools/cypher-shell/[Cypher Shell^], which returns the following output (truncated for brevity):

[options="header"]
|===
Expand All @@ -76,16 +76,16 @@ Alternatively, we can run the query in the link:{opsmanual}/tools/cypher-shell/[

[options="header", separator=¦]
|===
¦ Operator ¦ Details ¦ Estimated Rows ¦ Rows ¦ DB Hits ¦ Time (ms) ¦ Memory (Bytes) ¦ Ordered by ¦ Other
¦ +ProduceResults@memorymanagement ¦ `p1.name`, `p2.name`, `[rel in relationships(path) | type(rel)]` ¦ 2 ¦ 7890 ¦ 0 ¦ 16.498 ¦ ¦ p1 ASC, p2 ASC ¦ 16498332; In Pipeline 2
¦ +Projection@memorymanagement ¦ p1.name AS `p1.name`, p2.name AS `p2.name`, [rel IN relationships(path) | type(rel)] AS `[rel in relationships(path) | type(rel)]` ¦ 2 ¦ 7890 ¦ 46424 ¦ 48.497 ¦ ¦ p1 ASC, p2 ASC ¦ In Pipeline 2; 48497263
¦ +Projection@memorymanagement ¦ anon_134 AS p1, anon_138 AS p2, anon_142[$autoint_0] AS path ¦ 2 ¦ 7890 ¦ 0 ¦ 5.987 ¦ ¦ p1 ASC, p2 ASC ¦ In Pipeline 2; 5986820
¦ +OrderedAggregation@memorymanagement ¦ p1 AS anon_134, p2 AS anon_138, collect(path) AS anon_142 ¦ 2 ¦ 7890 ¦ 0 ¦ 26.009 ¦ 376272 ¦ anon_134 ASC, anon_138 ASC ¦ In Pipeline 2; 26009135
¦ +Projection@memorymanagement ¦ (p1)-[anon_64*]-(p2) AS path ¦ 5 ¦ 33440 ¦ 0 ¦ 54.526 ¦ ¦ p1 ASC, p2 ASC, length(PathExpression(NodePathStep(Variable(p1),MultiRelationshipPathStep(Variable(anon_64),BOTH,Some(Variable(p2)),NilPathStep)))) DESC ¦ In Pipeline 1; 54526010
¦ +Sort@memorymanagement ¦ p1 ASC, p2 ASC, `length(PathExpression(NodePathStep(Variable(p1),MultiRelationshipPathStep(Variable(anon_64),BOTH,Some(Variable(p2)),NilPathStep))))` DESC ¦ 5 ¦ 33440 ¦ 0 ¦ 96.382 ¦ 16687456 ¦ p1 ASC, p2 ASC, length(PathExpression(NodePathStep(Variable(p1),MultiRelationshipPathStep(Variable(anon_64),BOTH,Some(Variable(p2)),NilPathStep)))) DESC ¦ In Pipeline 1; 96381994
¦ +Projection@memorymanagement ¦ length((p1)-[anon_64*]-(p2)) AS `length(PathExpression(NodePathStep(Variable(p1),MultiRelationshipPathStep(Variable(anon_64),BOTH,Some(Variable(p2)),NilPathStep))))` ¦ 5 ¦ 33440 ¦ 134704 ¦ ¦ ¦ ¦ Fused in Pipeline 0
¦ +Filter@memorymanagement ¦ not p1 = p2 AND p1:Person ¦ 5 ¦ 33440 ¦ 114163 ¦ ¦ ¦ ¦ Fused in Pipeline 0
¦ +VarLengthExpand(All)@memorymanagement ¦ (p2)-[anon_64*..5]-(p1) ¦ 256 ¦ 115305 ¦ 188936 ¦ ¦ ¦ ¦ Fused in Pipeline 0
¦ Operator ¦ Estimated Rows ¦ Rows ¦ DB Hits ¦ Time (ms) ¦ Memory (Bytes)
¦ +ProduceResults@memorymanagement ¦ 2 ¦ 7890 ¦ 0 ¦ 16.498 ¦
¦ +Projection@memorymanagement ¦ 2 ¦ 7890 ¦ 46424 ¦ 48.497 ¦
¦ +Projection@memorymanagement ¦ 2 ¦ 7890 ¦ 0 ¦ 5.987 ¦
¦ +OrderedAggregation@memorymanagement ¦ 2 ¦ 7890 ¦ 0 ¦ 26.009 ¦ 376272
¦ +Projection@memorymanagement ¦ 5 ¦ 33440 ¦ 0 ¦ 54.526 ¦
¦ +Sort@memorymanagement ¦ 5 ¦ 33440 ¦ 0 ¦ 96.382 ¦ 16687456
¦ +Projection@memorymanagement ¦ 5 ¦ 33440 ¦ 134704 ¦ ¦
¦ +Filter@memorymanagement ¦ 5 ¦ 33440 ¦ 114163 ¦ ¦
¦ +VarLengthExpand(All)@memorymanagement ¦ 256 ¦ 115305 ¦ 188936 ¦ ¦
|===

The output from Cypher Shell contains the total memory usage information in a separate summary table, rather than including it as part of the final operator.
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