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I'm getting OOME's with 10G of memory for fullLinkJS and FewestModules. About 98% of it is from org.scalajs.linker.frontend.modulesplitter.Tagger#allPaths.
Every entry that I looked at in here has a long hierarchy of dynamic dependencies with a lot of duplication although some differences. It seems like the way that this graph is constructed is not very memory efficient. For example:
0 = {Tuple2@24699} (ClassName<web.cps.v2.Checkbox$Group$>,org.scalajs.linker.frontend.modulesplitter.Tagger$Paths@1ffcae8f)
_1 = {Names$ClassName@24900} ClassName<web.cps.v2.Checkbox$Group$>
_2 = {Tagger$Paths@24901} org.scalajs.linker.frontend.modulesplitter.Tagger$Paths@1ffcae8f
direct = {HashSet@24904} size = 0
dynamic = {HashMap@24905} size = 1
0 = {Tuple2@24909} (ModuleID(main),org.scalajs.linker.frontend.modulesplitter.Tagger$DynamicPaths@28ee42f2)
_1 = {ModuleSet$ModuleID@24315} ModuleID(main)
_2 = {Tagger$DynamicPaths@24911} org.scalajs.linker.frontend.modulesplitter.Tagger$DynamicPaths@28ee42f2
content = {HashMap@24914} size = 2
0 = {Tuple2@24918} (ClassName<web.routes.Route$B1PolicyMovePropose$$anon$52>,org.scalajs.linker.frontend.modulesplitter.Tagger$DynamicPaths@68ffc9ab)
_1 = {Names$ClassName@24922} ClassName<web.routes.Route$B1PolicyMovePropose$$anon$52>
_2 = {Tagger$DynamicPaths@24923} org.scalajs.linker.frontend.modulesplitter.Tagger$DynamicPaths@68ffc9ab
content = {HashMap@24930} size = 1
0 = {Tuple2@24934} (ClassName<web.views.policy.b1.B1MoveViewEntryPoint$$anon$2>,org.scalajs.linker.frontend.modulesplitter.Tagger$DynamicPaths@7a18bd92)
_1 = {Names$ClassName@24936} ClassName<web.views.policy.b1.B1MoveViewEntryPoint$$anon$2>
_2 = {Tagger$DynamicPaths@24937} org.scalajs.linker.frontend.modulesplitter.Tagger$DynamicPaths@7a18bd92
content = {HashMap@24940} size = 7
0 = {Tuple2@24944} (ClassName<web.routes.Route$PolicyHistoryPage$$anon$31>,org.scalajs.linker.frontend.modulesplitter.Tagger$DynamicPaths@6cbc81eb)
_1 = {Names$ClassName@24958} ClassName<web.routes.Route$PolicyHistoryPage$$anon$31>
_2 = {Tagger$DynamicPaths@24959} org.scalajs.linker.frontend.modulesplitter.Tagger$DynamicPaths@6cbc81eb
content = {HashMap@24962} size = 1
0 = {Tuple2@24966} (ClassName<web.pages.policy.a1.A1HistoryPageEntryPoint$$anon$2>,org.scalajs.linker.frontend.modulesplitter.Tagger$DynamicPaths@4776d944)
_1 = {Names$ClassName@24968} ClassName<web.pages.policy.a1.A1HistoryPageEntryPoint$$anon$2>
_2 = {Tagger$DynamicPaths@24969} org.scalajs.linker.frontend.modulesplitter.Tagger$DynamicPaths@4776d944
content = {HashMap@24972} size = 2
0 = {Tuple2@24976} (ClassName<web.routes.Route$PolicyEditPage$$anon$35>,org.scalajs.linker.frontend.modulesplitter.Tagger$DynamicPaths@43bbcab2)
_1 = {Names$ClassName@24985} ClassName<web.routes.Route$PolicyEditPage$$anon$35>
_2 = {Tagger$DynamicPaths@24986} org.scalajs.linker.frontend.modulesplitter.Tagger$DynamicPaths@43bbcab2
content = {HashMap@24989} size = 1
0 = {Tuple2@24993} (ClassName<web.pages.policy.a1.A1EditPageEntryPoint$$anon$2>,org.scalajs.linker.frontend.modulesplitter.Tagger$DynamicPaths@13027986)
_1 = {Names$ClassName@24995} ClassName<web.pages.policy.a1.A1EditPageEntryPoint$$anon$2>
_2 = {Tagger$DynamicPaths@24996} org.scalajs.linker.frontend.modulesplitter.Tagger$DynamicPaths@13027986
content = {HashMap@24999} size = 6
0 = {Tuple2@25003} (ClassName<web.routes.Route$PolicyAddressHomePage$$anon$38>,org.scalajs.linker.frontend.modulesplitter.Tagger$DynamicPaths@624f2e5b)
_1 = {Names$ClassName@25015} ClassName<web.routes.Route$PolicyAddressHomePage$$anon$38>
_2 = {Tagger$DynamicPaths@25016} org.scalajs.linker.frontend.modulesplitter.Tagger$DynamicPaths@624f2e5b
content = {HashMap@25019} size = 1
0 = {Tuple2@25023} (ClassName<web.pages.policy.a1.A1AddressPageEntryPoint$$anon$2>,org.scalajs.linker.frontend.modulesplitter.Tagger$DynamicPaths@fc38aa3)
_1 = {Names$ClassName@25025} ClassName<web.pages.policy.a1.A1AddressPageEntryPoint$$anon$2>
_2 = {Tagger$DynamicPaths@25026} org.scalajs.linker.frontend.modulesplitter.Tagger$DynamicPaths@fc38aa3
content = {HashMap@25029} size = 1
0 = {Tuple2@25033} (ClassName<web.routes.Route$MtaAddressFormPage$$anon$29>,org.scalajs.linker.frontend.modulesplitter.Tagger$DynamicPaths@31b82f68)
_1 = {Names$ClassName@25035} ClassName<web.routes.Route$MtaAddressFormPage$$anon$29>
_2 = {Tagger$DynamicPaths@25036} org.scalajs.linker.frontend.modulesplitter.Tagger$DynamicPaths@31b82f68
content = {HashMap@25039} size = 1
0 = {Tuple2@25043} (ClassName<web.pages.policy.a1.A1ChangeAddressPageEntryPoint$$anon$2>,org.scalajs.linker.frontend.modulesplitter.Tagger$DynamicPaths@2250500b)
_1 = {Names$ClassName@25045} ClassName<web.pages.policy.a1.A1ChangeAddressPageEntryPoint$$anon$2>
_2 = {Tagger$DynamicPaths@25046} org.scalajs.linker.frontend.modulesplitter.Tagger$DynamicPaths@2250500b
content = {HashMap@25049} size = 1
0 = {Tuple2@25053} (ClassName<web.routes.Route$MemberDashboard$$anon$13>,org.scalajs.linker.frontend.modulesplitter.Tagger$DynamicPaths@2c06c0aa)
_1 = {Names$ClassName@25055} ClassName<web.routes.Route$MemberDashboard$$anon$13>
_2 = {Tagger$DynamicPaths@25056} org.scalajs.linker.frontend.modulesplitter.Tagger$DynamicPaths@2c06c0aa
content = {HashMap@25059} size = 1
0 = {Tuple2@25063} (ClassName<web.views.MemberDashboardViewEntryPoint$$anon$2>,org.scalajs.linker.frontend.modulesplitter.Tagger$DynamicPaths@3f03d11b)
_1 = {Names$ClassName@25065} ClassName<web.views.MemberDashboardViewEntryPoint$$anon$2>
_2 = {Tagger$DynamicPaths@25066} org.scalajs.linker.frontend.modulesplitter.Tagger$DynamicPaths@3f03d11b
content = {HashMap@25069} size = 1
0 = {Tuple2@25073} (ClassName<web.routes.Route$QuoteLayout$$anon$1>,org.scalajs.linker.frontend.modulesplitter.Tagger$DynamicPaths@4f307afc)
_1 = {Names$ClassName@25075} ClassName<web.routes.Route$QuoteLayout$$anon$1>
_2 = {Tagger$DynamicPaths@25076} org.scalajs.linker.frontend.modulesplitter.Tagger$DynamicPaths@4f307afc
content = {HashMap@25079} size = 1
0 = {Tuple2@25083} (ClassName<web.layouts.QuoteLayoutEntryPoint$$anon$2>,org.scalajs.linker.frontend.modulesplitter.Tagger$DynamicPaths@6fc0bb19)
_1 = {Names$ClassName@25085} ClassName<web.layouts.QuoteLayoutEntryPoint$$anon$2>
_2 = {Tagger$DynamicPaths@25086} org.scalajs.linker.frontend.modulesplitter.Tagger$DynamicPaths@6fc0bb19
content = {HashMap@25089} size = 1
0 = {Tuple2@25093} (ClassName<web.routes.Route$SandboxPageIndex$$anon$68>,org.scalajs.linker.frontend.modulesplitter.Tagger$DynamicPaths@755935db)
_1 = {Names$ClassName@25095} ClassName<web.routes.Route$SandboxPageIndex$$anon$68>
_2 = {Tagger$DynamicPaths@25096} org.scalajs.linker.frontend.modulesplitter.Tagger$DynamicPaths@755935db
content = {HashMap@25099} size = 1
0 = {Tuple2@25103} (ClassName<web.pages.SandboxPageEntryPoint$$anon$2>,org.scalajs.linker.frontend.modulesplitter.Tagger$DynamicPaths@54f3b962)
_1 = {Names$ClassName@25105} ClassName<web.pages.SandboxPageEntryPoint$$anon$2>
_2 = {Tagger$DynamicPaths@25106} org.scalajs.linker.frontend.modulesplitter.Tagger$DynamicPaths@54f3b962
content = {HashMap@25109} size = 0
1 = {Tuple2@25004} (ClassName<web.routes.Route$PolicyRenewalPage$$anon$32>,org.scalajs.linker.frontend.modulesplitter.Tagger$DynamicPaths@7f3c96fa)
2 = {Tuple2@25005} (ClassName<web.routes.Route$ProfileLandingPage$$anon$22>,org.scalajs.linker.frontend.modulesplitter.Tagger$DynamicPaths@4581ee3d)
3 = {Tuple2@25006} (ClassName<web.routes.Route$PolicyCancelPage$$anon$39>,org.scalajs.linker.frontend.modulesplitter.Tagger$DynamicPaths@45cf6142)
4 = {Tuple2@25007} (ClassName<web.routes.Route$DashboardLayout$$anon$11>,org.scalajs.linker.frontend.modulesplitter.Tagger$DynamicPaths@5ee9b256)
5 = {Tuple2@25008} (ClassName<web.routes.Route$MtaCoverageFormPage$$anon$28>,org.scalajs.linker.frontend.modulesplitter.Tagger$DynamicPaths@45796437)
1 = {Tuple2@24977} (ClassName<web.routes.Route$A1DashboardLayout$$anon$34>,org.scalajs.linker.frontend.modulesplitter.Tagger$DynamicPaths@11056040)
1 = {Tuple2@24945} (ClassName<web.routes.Route$PolicyAddressChangePage$$anon$30>,org.scalajs.linker.frontend.modulesplitter.Tagger$DynamicPaths@33fda44e)
2 = {Tuple2@24946} (ClassName<web.routes.Route$MtaAddNamedInsuredPage$$anon$36>,org.scalajs.linker.frontend.modulesplitter.Tagger$DynamicPaths@4faf36be)
3 = {Tuple2@24947} (ClassName<web.routes.Route$MtaAddInterestPage$$anon$37>,org.scalajs.linker.frontend.modulesplitter.Tagger$DynamicPaths@7064f6f4)
4 = {Tuple2@24948} (ClassName<web.routes.Route$B1PolicyEditLayout$$anon$46>,org.scalajs.linker.frontend.modulesplitter.Tagger$DynamicPaths@78df82ca)
5 = {Tuple2@24949} (ClassName<web.routes.Route$A1PolicyEditLayout$$anon$27>,org.scalajs.linker.frontend.modulesplitter.Tagger$DynamicPaths@26de964b)
6 = {Tuple2@24950} (ClassName<web.routes.Route$A1DashboardLayout$$anon$34>,org.scalajs.linker.frontend.modulesplitter.Tagger$DynamicPaths@10724ee8)
1 = {Tuple2@24919} (ClassName<web.routes.Route$B1PolicyEditLayout$$anon$46>,org.scalajs.linker.frontend.modulesplitter.Tagger$DynamicPaths@faa0694)
_1 = {Names$ClassName@24926} ClassName<web.routes.Route$B1PolicyEditLayout$$anon$46>
_2 = {Tagger$DynamicPaths@24927} org.scalajs.linker.frontend.modulesplitter.Tagger$DynamicPaths@faa0694
maxExcludedHopCount = 0
I was trying to fix our module splits by adding more dynamic imports. We have routes which import entry points and then those entry points import the views. It didn't OOM until I added the imports in the entry points (but the splits weren't right). It still doesn't look like I have the imports right (looks like the route is pulling in the layouts) but it shouldn't OOM.
In case it helps:
sbt:goodcover> show client/fullLinkJS/scalaJSLinkerConfig
[info] StandardConfig(
[info] semantics = Semantics(
[info] asInstanceOfs = Unchecked,
[info] arrayIndexOutOfBounds = Unchecked,
[info] arrayStores = Unchecked,
[info] negativeArraySizes = Unchecked,
[info] nullPointers = Unchecked,
[info] stringIndexOutOfBounds = Unchecked,
[info] moduleInit = Unchecked,
[info] strictFloats = true,
[info] productionMode = true
[info] ),
[info] moduleKind = ESModule,
[info] moduleSplitStyle = FewestModules,
[info] esFeatures = ESFeatures(
[info] esVersion = ECMAScript 2021 (edition 12),
[info] useECMAScript2015Semantics = true,
[info] allowBigIntsForLongs = false,
[info] avoidClasses = true,
[info] avoidLetsAndConsts = true
[info] ),
[info] checkIR = true,
[info] optimizer = true,
[info] jsHeader = "",
[info] parallel = true,
[info] sourceMap = true,
[info] relativizeSourceMapBase = None,
[info] outputPatterns = OutputPatterns(
[info] jsFile = %s.js,
[info] sourceMapFile = %s.js.map,
[info] moduleName = ./%s.js,
[info] jsFileURI = %s.js,
[info] sourceMapURI = %s.js.map,
[info] ),
[info] minify = true,
[info] closureCompilerIfAvailable = false,
[info] prettyPrint = false,
[info] batchMode = false,
[info] maxConcurrentWrites = 50,
[info] )
Originally posted by @steinybot in #4906 (comment)
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