Fast Path allocation

[Andrew Haley]

On 3/27/21 10:17 AM, Manavjeet Singh wrote:
> Hi,
> I am studying C2 compiler in java. In the file
> jdk/src/hotspot/share/opto/runtime.cpp, in the allocation section a comment
> says, "We failed the fast-path allocation. Now we need to do a scavenge or
> GC and try allocation again."
> I assume the fast path allocation means directly allocating from a TLAB.

Correct. The fast path for newinstance allocates from a TLAB.

-- 
Andrew Haley  (he/him)
Java Platform Lead Engineer
Red Hat UK Ltd. <https://www.redhat.com>
https://keybase.io/andrewhaley
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