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Diffstat (limited to 'innobase/buf/buf0rea.c')
-rw-r--r--innobase/buf/buf0rea.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/innobase/buf/buf0rea.c b/innobase/buf/buf0rea.c
index 83397c9c7fa..7de778a5956 100644
--- a/innobase/buf/buf0rea.c
+++ b/innobase/buf/buf0rea.c
@@ -101,11 +101,13 @@ buf_read_page_low(
block = buf_page_init_for_read(mode, space, offset);
if (block != NULL) {
+#ifdef UNIV_DEBUG
if (buf_debug_prints) {
fprintf(stderr,
"Posting read request for page %lu, sync %lu\n",
offset, sync);
}
+#endif /* UNIV_DEBUG */
fil_io(OS_FILE_READ | wake_later,
sync, space, offset, 0, UNIV_PAGE_SIZE,
@@ -242,11 +244,13 @@ buf_read_ahead_random(
os_aio_simulated_wake_handler_threads();
+#ifdef UNIV_DEBUG
if (buf_debug_prints && (count > 0)) {
fprintf(stderr,
"Random read-ahead space %lu offset %lu pages %lu\n",
space, offset, count);
}
+#endif /* UNIV_DEBUG */
return(count);
}
@@ -500,11 +504,13 @@ buf_read_ahead_linear(
/* Flush pages from the end of the LRU list if necessary */
buf_flush_free_margin();
+#ifdef UNIV_DEBUG
if (buf_debug_prints && (count > 0)) {
fprintf(stderr,
"LINEAR read-ahead space %lu offset %lu pages %lu\n",
space, offset, count);
}
+#endif /* UNIV_DEBUG */
return(count);
}
@@ -549,11 +555,13 @@ buf_read_ibuf_merge_pages(
/* Flush pages from the end of the LRU list if necessary */
buf_flush_free_margin();
+#ifdef UNIV_DEBUG
if (buf_debug_prints) {
fprintf(stderr,
"Ibuf merge read-ahead space %lu pages %lu\n",
space, n_stored);
}
+#endif /* UNIV_DEBUG */
}
/************************************************************************
@@ -613,8 +621,10 @@ buf_read_recv_pages(
/* Flush pages from the end of the LRU list if necessary */
buf_flush_free_margin();
+#ifdef UNIV_DEBUG
if (buf_debug_prints) {
fprintf(stderr,
"Recovery applies read-ahead pages %lu\n", n_stored);
}
+#endif /* UNIV_DEBUG */
}