Print some stats about blk size in verbose output - dedup - deduplicating backup program
HTML git clone git://bitreich.org/dedup/ git://enlrupgkhuxnvlhsf6lc3fziv5h2hhfrinws65d7roiv6bfj7d652fid.onion/dedup/
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---
DIR commit b32c5c5b3c6b92b0a10ddc694e7df2d233c43c52
DIR parent 0b721adea7ed4e7d16054d439bb092a2905bade8
HTML Author: sin <sin@2f30.org>
Date: Sun, 17 Feb 2019 09:54:19 +0000
Print some stats about blk size in verbose output
Tweak sizes again.
Diffstat:
M dedup.c | 27 ++++++++++++++++++++-------
1 file changed, 20 insertions(+), 7 deletions(-)
---
DIR diff --git a/dedup.c b/dedup.c
@@ -16,8 +16,8 @@
#define STOREF ".store"
#define CACHEF ".cache"
-#define BLKSIZ (8*1024*1024)
-#define WINSIZ 4096
+#define BLKSIZ (1024 * 512)
+#define WINSIZ 1024
#define HASHMSK ((1ul << 21) - 1)
#define MDSIZ SHA256_DIGEST_LENGTH
@@ -556,6 +556,11 @@ void
init_cache(void)
{
uint64_t nents, i;
+ uint64_t min, max, avg;
+
+ min = BLKSIZ;
+ max = 0;
+ avg = 0;
nents = cache_nents();
lseek(cfd, 0, SEEK_SET);
@@ -567,11 +572,19 @@ init_cache(void)
errx(1, "read: unexpected EOF");
add_cent(cent);
- if (verbose) {
- fprintf(stderr, "bdescr.offset: %llu bdescr.size: %llu\n",
- (unsigned long long)cent->bdescr.offset,
- (unsigned long long)cent->bdescr.size);
- }
+ if (cent->bdescr.size > max)
+ max = cent->bdescr.size;
+ if (cent->bdescr.size < min)
+ min = cent->bdescr.size;
+ avg += cent->bdescr.size;
+ }
+ avg /= nents;
+
+ if (verbose) {
+ fprintf(stderr, "min/avg/max blksize: %llu/%llu/%llu\n",
+ (unsigned long long)min,
+ (unsigned long long)avg,
+ (unsigned long long)max);
}
}