Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

[linux-2.6-block.git] / tools / perf / tests / code-reading.c

diff --git a/tools/perf/tests/code-reading.c b/tools/perf/tests/code-reading.c
index 313a48c6b2bc8e111e113e79c4a72fdc2d720ac5..afc9ad0a0515c5db77745d0d0c6964d950fa3bfc 100644 (file)
--- a/tools/perf/tests/code-reading.c
+++ b/tools/perf/tests/code-reading.c
@@ -439,7 +439,7 @@ static int do_test_code_reading(bool try_kcore)
                .mmap_pages          = UINT_MAX,
                .user_freq           = UINT_MAX,
                .user_interval       = ULLONG_MAX,
-               .freq                = 4000,
+               .freq                = 500,
                .target              = {
                        .uses_mmap   = true,
                },
@@ -559,7 +559,13 @@ static int do_test_code_reading(bool try_kcore)
                                evlist = NULL;
                                continue;
                        }
-                       pr_debug("perf_evlist__open failed\n");
+
+                       if (verbose) {
+                               char errbuf[512];
+                               perf_evlist__strerror_open(evlist, errno, errbuf, sizeof(errbuf));
+                               pr_debug("perf_evlist__open() failed!\n%s\n", errbuf);
+                       }
+
                        goto out_put;
                }
                break;