[GitHub] [pulsar] frankxieke commented on a change in pull request #11555: [Offload] Add offload performance metrics for tiered storage.

[GitBox <gi...@apache.org>]

frankxieke commented on a change in pull request #11555:
URL: https://github.com/apache/pulsar/pull/11555#discussion_r685845386



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File path: tiered-storage/jcloud/src/main/java/org/apache/bookkeeper/mledger/offload/jcloud/impl/BlockAwareSegmentInputStreamImpl.java
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@@ -113,9 +123,12 @@ private int readEntries() throws IOException {
 
     private List<ByteBuf> readNextEntriesFromLedger(long start, long maxNumberEntries) throws IOException {
         long end = Math.min(start + maxNumberEntries - 1, ledger.getLastAddConfirmed());
+        long startTime = System.nanoTime();
         try (LedgerEntries ledgerEntriesOnce = ledger.readAsync(start, end).get()) {
-            log.debug("read ledger entries. start: {}, end: {}", start, end);
-
+            log.debug("read ledger entries. start: {}, end: {} cost {}", start, end, TimeUnit.NANOSECONDS.toMicros(System.nanoTime() - startTime));

Review comment:
       ok




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