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| author |   Javier González <jg@lightnvm.io> | 2017-06-26 11:57:13 +0200 |
|---|---|---|
| committer |   Jens Axboe <axboe@kernel.dk> | 2017-06-26 16:24:53 -0600 |
| commit | db7ada33cdcae7fef0a088141b1e4ab8c25fd395 (patch) | |
| tree | 10e098319a92916b999c5b52e532306ec65e9f57 /drivers/lightnvm/pblk-sysfs.c | |
| parent | lightnvm: pblk: spare double cpu_to_le64 calc. (diff) | |
| download | linux-dev-db7ada33cdcae7fef0a088141b1e4ab8c25fd395.tar.xz linux-dev-db7ada33cdcae7fef0a088141b1e4ab8c25fd395.zip | |
lightnvm: pblk: add debug stat for read cache hits
Add a new debug counter to measure cache hits on the read path
Signed-off-by: Javier González <javier@cnexlabs.com>
Signed-off-by: Matias Bjørling <matias@cnexlabs.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/lightnvm/pblk-sysfs.c')
| -rw-r--r-- | drivers/lightnvm/pblk-sysfs.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/lightnvm/pblk-sysfs.c b/drivers/lightnvm/pblk-sysfs.c index f0af1d1ceeff..3c1a586c09a2 100644 --- a/drivers/lightnvm/pblk-sysfs.c +++ b/drivers/lightnvm/pblk-sysfs.c @@ -294,7 +294,7 @@ static ssize_t pblk_sysfs_lines_info(struct pblk *pblk, char *page) static ssize_t pblk_sysfs_stats_debug(struct pblk *pblk, char *page) { return snprintf(page, PAGE_SIZE, - "%lu\t%lu\t%lu\t%lu\t%lu\t%lu\t%lu\t%lu\t%lu\t%lu\t%lu\t%lu\t%lu\n", + "%lu\t%lu\t%lu\t%lu\t%lu\t%lu\t%lu\t%lu\t%lu\t%lu\t%lu\t%lu\t%lu\t%lu\n", atomic_long_read(&pblk->inflight_writes), atomic_long_read(&pblk->inflight_reads), atomic_long_read(&pblk->req_writes), @@ -307,6 +307,7 @@ static ssize_t pblk_sysfs_stats_debug(struct pblk *pblk, char *page) atomic_long_read(&pblk->recov_writes), atomic_long_read(&pblk->recov_gc_writes), atomic_long_read(&pblk->recov_gc_reads), + atomic_long_read(&pblk->cache_reads), atomic_long_read(&pblk->sync_reads)); } #endif |