dedupe: cleanups and rate estimation

[fio.git] / options.c

diff --git a/options.c b/options.c
index bc07885d757259b19313f22eaf1a54c8f9809a4f..593f717149050fac1d5b206b53a27b7139e44af3 100644 (file)
--- a/options.c
+++ b/options.c
@@ -133,7 +133,7 @@ static int bssplit_ddir(struct thread_options *o, int ddir, char *str)
                        perc += bsp->perc;
        }
 
-       if (perc > 100) {
+       if (perc > 100 && perc_missing > 1) {
                log_err("fio: bssplit percentages add to more than 100%%\n");
                free(bssplit);
                return 1;
@@ -143,6 +143,8 @@ static int bssplit_ddir(struct thread_options *o, int ddir, char *str)
         * them.
         */
        if (perc_missing) {
+               if (perc_missing == 1)
+                       perc = 100;
                for (i = 0; i < o->bssplit_nr[ddir]; i++) {
                        struct bssplit *bsp = &bssplit[i];
 
@@ -1048,6 +1050,16 @@ static int str_buffer_compress_cb(void *data, unsigned long long *il)
        return 0;
 }
 
+static int str_dedupe_cb(void *data, unsigned long long *il)
+{
+       struct thread_data *td = data;
+
+       td->flags |= TD_F_COMPRESS;
+       td->o.dedupe_percentage = *il;
+       td->o.refill_buffers = 1;
+       return 0;
+}
+
 static int str_verify_pattern_cb(void *data, const char *input)
 {
        struct thread_data *td = data;
@@ -3254,6 +3266,18 @@ struct fio_option fio_options[FIO_MAX_OPTS] = {
                .category = FIO_OPT_C_IO,
                .group  = FIO_OPT_G_IO_BUF,
        },
+       {
+               .name   = "dedupe_percentage",
+               .lname  = "Dedupe percentage",
+               .type   = FIO_OPT_INT,
+               .cb     = str_dedupe_cb,
+               .maxval = 100,
+               .minval = 0,
+               .help   = "Percentage of buffers that are dedupable",
+               .interval = 1,
+               .category = FIO_OPT_C_IO,
+               .group  = FIO_OPT_G_IO_BUF,
+       },
        {
                .name   = "clat_percentiles",
                .lname  = "Completion latency percentiles",