diff mbox series

[16/28] lustre: llite: Add strided readahead to iotrace

Message ID 1655560330-30743-17-git-send-email-jsimmons@infradead.org (mailing list archive)
State Not Applicable
Headers show
Series lustre: sync to OpenSFS June 15, 2022 | expand

Commit Message

James Simmons June 18, 2022, 1:51 p.m. UTC 
From: Patrick Farrell <pfarrell@whamcloud.com>

We need to capture some additional parameters to correctly
understand the behavior of strided readahead.  Add these
parameters to the existing iotrace message.

WC-bug-id: https://jira.whamcloud.com/browse/LU-15317
Lustre-commit: 5ed185955985b099b ("LU-15317 llite: Add strided readahead to iotrace")
Signed-off-by: Patrick Farrell <pfarrell@whamcloud.com>
Reviewed-on: https://review.whamcloud.com/45888
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Reviewed-by: Sebastien Buisson <sbuisson@ddn.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
---
 fs/lustre/llite/rw.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/fs/lustre/llite/rw.c b/fs/lustre/llite/rw.c
index 239f78b..1c2f027 100644
--- a/fs/lustre/llite/rw.c
+++ b/fs/lustre/llite/rw.c
@@ -1696,9 +1696,11 @@  int ll_io_read_page(const struct lu_env *env, struct cl_io *io,
 		 * read pages
 		 */
 		CDEBUG(D_READA | (rc2 ? D_IOTRACE : 0),
-		       DFID " %d pages read ahead at %lu, triggered by user read at %lu\n",
+		       DFID " %d pages read ahead at %lu, triggered by user read at %lu, stride offset %lld, stride length %lld, stride bytes %lld\n",
 		       PFID(ll_inode2fid(inode)), rc2, ra_start_index,
-		       vvp_index(vpg));
+		       vvp_index(vpg), ras->ras_stride_offset,
+		       ras->ras_stride_length, ras->ras_stride_bytes);
+
 	} else if (vvp_index(vpg) == io_start_index &&
 		   io_end_index - io_start_index > 0) {
 		rc2 = ll_readpages(env, io, &queue->c2_qin, io_start_index + 1,