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nio2: NIO.2 file API companion code (streaming 5 GB at -Xmx64m, handle leaks, WatchService, mmap)

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Co-Authored-By: Claude Sonnet 5.5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01KqJyCidz3ZgRyHABv2GVJh
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asmhatre
2026-09-30 19:14:31 +00:00
co-authored by Claude Sonnet 5.5
parent f4b732799d
commit 1ac2f6077a
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nio2/output/11-watch-tuned-and-repeat.txt
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$ java -Djdk.nio.file.WatchService.maxEventsPerPoll=10000 WatchDemo (scenario 6 only)
6. burst: create N empty files in a fresh directory before polling once (jdk.nio.file.WatchService.maxEventsPerPoll=10000):
N=100 delivered 100 events: ENTRY_CREATE=100 OVERFLOW(count)=0, files on disk=100
N=512 delivered 512 events: ENTRY_CREATE=512 OVERFLOW(count)=0, files on disk=512
N=513 delivered 513 events: ENTRY_CREATE=513 OVERFLOW(count)=0, files on disk=513
N=5000 delivered 5000 events: ENTRY_CREATE=5000 OVERFLOW(count)=0, files on disk=5000
Scenario 3 (50 appends, no polling) over five more runs:
{(batches)=1, ENTRY_MODIFY=21}
{(batches)=1, ENTRY_MODIFY=20}
{(batches)=1, ENTRY_MODIFY=2}
{(batches)=1, ENTRY_MODIFY=1}
{(batches)=1, ENTRY_MODIFY=19}