const golang.org/x/sys/unix.PERF_SAMPLE_DATA_PAGE_SIZE

one use

	golang.org/x/sys/unix (current package)
		ztypes_linux.go#L1190: 	PERF_SAMPLE_DATA_PAGE_SIZE            = 0x400000

The pages are generated with Golds v0.7.6. (GOOS=linux GOARCH=amd64)