Package io.deephaven.engine.table.impl.perf

Class BasePerformanceEntry

java.lang.Object
io.deephaven.engine.table.impl.perf.BasePerformanceEntry
All Implemented Interfaces:
LogOutputAppendable
Direct Known Subclasses:
PerformanceEntry, QueryPerformanceNugget
public class BasePerformanceEntry extends Object implements LogOutputAppendable
A smaller entry that simply records usage data, meant for aggregating into the larger entry.

  • Constructor Details

    • BasePerformanceEntry

      public BasePerformanceEntry()

  • Method Details

    • onBaseEntryStart

      public void onBaseEntryStart()

    • onBaseEntryEnd

      public void onBaseEntryEnd()

    • getUsageNanos

      public long getUsageNanos()
      Get the aggregate usage in nanoseconds. This getter should be called by exclusive owners of the entry, and never concurrently with mutators.
      Returns:
      total wall clock time in nanos

    • getCpuNanos

      public long getCpuNanos()
      Get the aggregate cpu time in nanoseconds. This getter should be called by exclusive owners of the entry, and never concurrently with mutators.
      Returns:
      total cpu time in nanos

    • getUserCpuNanos

      public long getUserCpuNanos()
      Get the aggregate cpu user time in nanoseconds. This getter should be called by exclusive owners of the entry, and never concurrently with mutators.
      Returns:
      total cpu user time in nanos

    • getAllocatedBytes

      public long getAllocatedBytes()
      Get the aggregate allocated memory in bytes. This getter should be called by exclusive owners of the entry, and never concurrently with mutators.
      Returns:
      The bytes of allocated memory attributed to the instrumented operation.

    • getPoolAllocatedBytes

      public long getPoolAllocatedBytes()
      Get allocated pooled/reusable memory attributed to the instrumented operation in bytes. This getter should be called by exclusive owners of the entry, and never concurrently with mutators.
      Returns:
      total pool allocated memory in bytes

    • append

      public LogOutput append(@NotNull @NotNull LogOutput logOutput)
      Specified by:
      append in interface LogOutputAppendable

    • accumulate

      public void accumulate(@NotNull @NotNull BasePerformanceEntry entry)
      Accumulate the values from another entry into this one. The provided entry will not be mutated.
      Parameters:
      entry - the entry to accumulate