kiszk commented on a change in pull request #25766: [SPARK-29061][SQL] Prints
bytecode statistics in debugCodegen
URL: https://github.com/apache/spark/pull/25766#discussion_r324498462
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File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/debug/package.scala
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@@ -81,11 +82,21 @@ package object debug {
def writeCodegen(append: String => Unit, plan: SparkPlan): Unit = {
val codegenSeq = codegenStringSeq(plan)
append(s"Found ${codegenSeq.size} WholeStageCodegen subtrees.\n")
- for (((subtree, code), i) <- codegenSeq.zipWithIndex) {
- append(s"== Subtree ${i + 1} / ${codegenSeq.size} ==\n")
+ for (((subtree, code, codeStats), i) <- codegenSeq.zipWithIndex) {
+ val usedConstPoolRatio = if (codeStats.maxConstPoolSize > 0) {
+ val rt = 100.0 * codeStats.maxConstPoolSize /
CodeGenerator.MAX_JVM_CONSTANT_POOL_SIZE
+ "(%.2f%% used)".format(rt)
+ } else {
+ ""
+ }
+ val codeStatsStr = s"maxClassCodeSize:${codeStats.maxClassCodeSize}; " +
Review comment:
@maropu Could you elaborate on your idea to add this?
How about adding ratio of `maxMethodCodeSize` /
`CodeGenerator.DEFAULT_JVM_HUGE_METHOD_LIMIT`, too?
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