diff options
Diffstat (limited to 't/dedupe.c')
| -rw-r--r-- | t/dedupe.c | 21 |
1 files changed, 14 insertions, 7 deletions
@@ -473,11 +473,14 @@ static void show_chunk(struct chunk *c) } } -static void show_stat(uint64_t nextents, uint64_t nchunks) +static void show_stat(uint64_t nextents, uint64_t nchunks, uint64_t ndupextents) { double perc, ratio; - printf("Extents=%lu, Unique extents=%lu\n", (unsigned long) nextents, (unsigned long) nchunks); + printf("Extents=%lu, Unique extents=%lu", (unsigned long) nextents, (unsigned long) nchunks); + if (!bloom) + printf(" Duplicated extents=%lu", (unsigned long) ndupextents); + printf("\n"); if (nchunks) { ratio = (double) nextents / (double) nchunks; @@ -485,17 +488,20 @@ static void show_stat(uint64_t nextents, uint64_t nchunks) } else printf("De-dupe ratio: 1:infinite\n"); + if (ndupextents) + printf("De-dupe working set at least: %3.2f%%\n", 100.0 * (double) ndupextents / (double) nextents); + perc = 1.00 - ((double) nchunks / (double) nextents); perc *= 100.0; printf("Fio setting: dedupe_percentage=%u\n", (int) (perc + 0.50)); } -static void iter_rb_tree(uint64_t *nextents, uint64_t *nchunks) +static void iter_rb_tree(uint64_t *nextents, uint64_t *nchunks, uint64_t *ndupextents) { struct fio_rb_node *n; - *nchunks = *nextents = 0; + *nchunks = *nextents = *ndupextents = 0; n = rb_first(&rb_root); if (!n) @@ -507,6 +513,7 @@ static void iter_rb_tree(uint64_t *nextents, uint64_t *nchunks) c = rb_entry(n, struct chunk, rb_node); (*nchunks)++; *nextents += c->count; + *ndupextents += (c->count > 1); if (dump_output) show_chunk(c); @@ -530,7 +537,7 @@ static int usage(char *argv[]) int main(int argc, char *argv[]) { - uint64_t nextents = 0, nchunks = 0; + uint64_t nextents = 0, nchunks = 0, ndupextents = 0; int c, ret; arch_init(argv); @@ -583,9 +590,9 @@ int main(int argc, char *argv[]) if (!ret) { if (!bloom) - iter_rb_tree(&nextents, &nchunks); + iter_rb_tree(&nextents, &nchunks, &ndupextents); - show_stat(nextents, nchunks); + show_stat(nextents, nchunks, ndupextents); } fio_sem_remove(rb_lock); |