LU-3321 osc: Adjustment on osc LRU for performance

[fs/lustre-release.git] / lustre / osc / lproc_osc.c

diff --git a/lustre/osc/lproc_osc.c b/lustre/osc/lproc_osc.c
index b43dd5b..e765e48 100644 (file)
--- a/lustre/osc/lproc_osc.c
+++ b/lustre/osc/lproc_osc.c
@@ -195,7 +195,7 @@ static int osc_wr_cached_mb(struct file *file, const char *buffer,
 
        rc = cfs_atomic_read(&cli->cl_lru_in_list) - pages_number;
        if (rc > 0)
-               (void)osc_lru_shrink(cli, rc);
+               (void)osc_lru_shrink(cli, rc, true);
 
        return count;
 }
@@ -496,6 +496,22 @@ static int lprocfs_osc_wr_max_pages_per_rpc(struct file *file,
        return count;
 }
 
+static int osc_rd_unstable_stats(char *page, char **start, off_t off,
+                               int count, int *eof, void *data)
+{
+       struct obd_device *dev = data;
+       struct client_obd *cli = &dev->u.cli;
+       int pages, mb;
+
+       pages = cfs_atomic_read(&cli->cl_unstable_count);
+       mb    = (pages * PAGE_CACHE_SIZE) >> 20;
+
+       return snprintf(page, count,
+                       "unstable_pages: %8d\n"
+                       "unstable_mb:    %8d\n",
+                       pages, mb);
+}
+
 static struct lprocfs_vars lprocfs_osc_obd_vars[] = {
         { "uuid",            lprocfs_rd_uuid,        0, 0 },
         { "ping",            0, lprocfs_wr_ping,     0, 0, 0222 },
@@ -536,6 +552,8 @@ static struct lprocfs_vars lprocfs_osc_obd_vars[] = {
         { "state",           lprocfs_rd_state,         0, 0 },
         { "pinger_recov",    lprocfs_rd_pinger_recov,
                              lprocfs_wr_pinger_recov,  0, 0 },
+        { "unstable_stats",  osc_rd_unstable_stats, 0, 0},
+
         { 0 }
 };