document that Record.Remaining is -1 for overwritable buffers

lmb · lmb · commit 220e1e795552 · 2023-10-20T12:12:21.000+01:00
Signed-off-by: Lorenz Bauer &lt;lmb@isovalent.com&gt;
diff --git a/perf/reader.go b/perf/reader.go
@@ -50,6 +50,7 @@ type Record struct {
 	LostSamples uint64
 
 	// The minimum number of bytes remaining in the per-CPU buffer after this Record has been read.
+	// Negative for overwritable buffers.
 	Remaining int
 }
 

Original file line number	Diff line number	Diff line change
`@@ -50,6 +50,7 @@ type Record struct {`
`50`	`50`	`LostSamples uint64`
`51`	`51`
`52`	`52`	`// The minimum number of bytes remaining in the per-CPU buffer after this Record has been read.`
	`53`	`+ // Negative for overwritable buffers.`
`53`	`54`	`Remaining int`
`54`	`55`	`}`
`55`	`56`