Re: [PATCH v2 4/4] perf report: support record trace file decompression

From: Jiri Olsa
Date: Tue Feb 12 2019 - 08:09:20 EST

On Mon, Feb 11, 2019 at 11:25:00PM +0300, Alexey Budankov wrote:
> PERF_RECORD_COMPRESSED records are decompressed from trace file into
> a linked list of mmaped memory regions using streaming Zstandard API.
> After that the regions are loaded fetching uncompressed events. When
> dumping raw trace (e.g., perf report -D --header) file offsets of
> events from compressed records are set to zero.
> Signed-off-by: Alexey Budankov <alexey.budankov@xxxxxxxxxxxxxxx>
> ---
> Changes in v2:
> - moved compression/decompression code to session layer

could you please add some automated test for this?

I think it could be part of the sample synthesize test
or even new script test under tests/shell.. or anything
else really.. just to see that we have some clean
interface for this that we can test