Using the TLAB Allocations Page

The TLAB Allocations page contains information about Thread Local Allocation Buffers (TLABs).

This page displays TLAB allocation data in both tables and graphs.

Using the TLAB Allocations Page: Selections and Aspects

Use the drop-down menus at the top of the page to choose a selection and aspect if desired. Data from other pages can be saved to the selection drop-down menu by dragging an area of a chart (or selecting data from a table) and choosing Store Selection or Store Selection and Set As Focused Selection from the context menu.

The following controls provide additional behavior:

Show concurrent: Show all events concurrent to the selected aspect.
Contained: Only show events that are fully contained in the time range from the active selection aspect
Same threads: Only show events in threads related to the active selection aspect.
Time Range: Zoom to time range on relevant places on the page, or clear the time range zoom.

Using the TLAB Allocations Page: Tables and Graphs

Table columns are labeled as follows:

Thread: The thread name.
Count: The number of allocations in this TLAB.
Average TLAB Allocation: An estimate of the average size of allocations inside TLABs.
Average Allocation Outside TLABs: An estimate of the average size of allocations outside TLABs.
Est. TLAB Allocation: The estimated allocation size in TLABs.
Total Allocation Outside TLABs: The total size of allocations outside TLABs.

You can select any of the following to be displayed on the graph:

Est. TLAB Allocation: The estimated allocation size in TLABs.
Total Allocation Outside TLABs: The total size of allocations outside TLABs.