C1 performance on linux-aarch64 is not good.
It is observed with the VM option -XX:TieredStopAtLevel=2,3 for the following JVM TI test:
  serviceability/jvmti/vthread/SuspendResume1

This is a comment from Chris P. with performance measurements:
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Here are the results of running 5 times on each of our 5 platforms with `-XX:TieredStopAtLevel=2"`

macosx-aarch64-debug 22s
windows-x64-debug 23s
windows-x64-debug 23s
macosx-aarch64-debug 23s
macosx-aarch64-debug 24s
macosx-aarch64-debug 24s
windows-x64-debug 24s
macosx-x64-debug 24s
macosx-aarch64-debug 25s
macosx-x64-debug 26s
macosx-x64-debug 26s
macosx-x64-debug 26s
macosx-x64-debug 26s
windows-x64-debug 28s
windows-x64-debug 33s
linux-x64-debug 43s
linux-x64-debug 45s
linux-aarch64-debug 2m 17s
linux-x64-debug 2m 20s
linux-x64-debug 2m 42s
linux-x64-debug 2m 59s
linux-aarch64-debug 3m 22s
linux-aarch64-debug 4m 31s
linux-aarch64-debug 6m 30s
linux-aarch64-debug 9m 22s

The last one was a timeout. So it seems that linux-aarch64 is consistently slow.
linux-x64 is also a bit slow in some cases.
It seems it would be worth understanding these performance differences.
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Feel free to close this if you already have a bug filed on this problem.