US 12,423,210 B2Granted

Optimized recompilation using hardware tracing

AssigneeOracle International Corporation

InventorsIlknur Cansu Kaynak Kocberber, Mario Wolczko, Thomas Wuerthinger

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Abstract

A tracing controller may utilize a binary execution trace mechanism to trace execution of compiled application machine code. The tracing controller may initiate hardware tracing to gather control-flow hardware traces of a method executing on a processor configured to generate hardware tracing information. The controller may generate a profile based on the hardware tracing information and initiate re-compiling or re-optimizing of the method in response to determining that the new profile differs from the previous profile. The controller may repeatedly profile and re-optimize a method until profiles for the method stabilize. Profiling and hardware tracing of an application may be selectively enabled or disabled allowing the controller to respond to later phase changes in application execution by re-optimizing, thereby potentially improving overall application performance.

Claims20

Dependent claims

A computing device, comprising:

a processor comprising one or more hardware tracing address ranges and configured to generate hardware tracing information for an application emitted by a compiler;
and
a memory comprising program instructions that, when executed on the processor or another processor, cause the processor or another processor to implement a tracing controller configured to:
generate a plurality of hardware traces for the application, wherein individual ones of the plurality of hardware traces comprise execution information for different respective portions of the application, and wherein the application does not include profiling instrumentation information for optimized program instructions of the application emitted by the compiler;
generate a profile comprising execution information for different portions of the application based at least in part on different respective ones of the plurality of hardware traces;
and
initiate recompilation of at least a portion of the application according to the generated profile to optimize the different portions of the application, wherein individual ones of the different portions of the application are optimized differently than other ones of the different portions of the application according to respective execution information for the different portions of the application.

4 more elements

A computer-implemented method, comprising:

generating a plurality of hardware traces for an application emitted by a compiler, wherein individual ones of the plurality of hardware traces comprise execution information for different respective portions of the application, and wherein the application does not include profiling instrumentation information for optimized program instructions of the application emitted by the compiler;
generating a profile comprising execution information for different portions of the application based at least in part on different respective ones of the plurality of hardware traces;
and
recompiling at least a portion of the application according to the generated profile to optimize the different portions of the application, wherein individual ones of the different portions of the application are optimized differently than other ones of the different portions of the application according to respective execution information for the different portions of the application.

1 more element

One or more non-transitory, computer-readable storage media storing program instructions that when executed on or across one or more processors cause the one or more processors to implement a tracing controller to perform:

generating a plurality of hardware traces for an application emitted by a compiler, wherein individual ones of the plurality of hardware traces comprise execution information for different respective portions of the application, and wherein the application does not include profiling instrumentation information for optimized program instructions of the application emitted by the compiler;
generating a profile comprising execution information for different portions of the application based at least in part on different respective ones of the plurality of hardware traces;
and
initiating recompilation of at least a portion of the application according to the generated profile to optimize the different portions of the application, wherein individual ones of the different portions of the application are optimized differently than other ones of the different portions of the application according to respective execution information for the different portions of the application.

1 more element

Dependencies are inferred from the claim text.

Facts

Application: 18/485,125Filed 11 Oct 2023 · continuation
Priority: 30 Mar 2018
Published: US 2024/0045785 A18 Feb 2024
Granted: 23 Sep 2025
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

G06F 11/3466
Recording or statistical evaluation of computer activity, e.g. of down time, of input/output operation ; Recording or statistical evaluation of…:…
G06F 8/41
Transformation of program code: compilation
G06F 8/443
Encoding: optimisation
G06F 8/4441
Optimisation: reducing the execution time required by the program code

Family

Application62/650,812Us provisional application · filed 30 Mar 2018
Application15/994,967Parent of this continuation · filed 31 May 2018
Application16/672,319Parent of this continuation · filed 1 Nov 2019
US 10,466,986 B2Parent of this continuation · filed 5 Nov 2019
Application17/804,288Parent of this continuation · filed 26 May 2022
US 11,347,617 B2Parent of this continuation · filed 31 May 2022
US 2024/0045785 A1Pre-grant publication · published 8 Feb 2024
US 11,816,014 B2Parent of this continuation
US 2019/0303117 A1Published application
US 2020/0065079 A1Published application
US 2022/0283925 A1Published application
US 12,423,210 B2This patent

From the US filing history. Foreign family members aren’t listed.