From da65a441f30f068acd48dc42c3e2a96e604b9364 Mon Sep 17 00:00:00 2001 From: delphij Date: Tue, 15 Jul 2014 04:33:11 +0000 Subject: [PATCH] MFC r267572: MFV r249332 (illumos-gate 14005:55fc53126003) Illumos ZFS issues: 3654 zdb should print number of ganged blocks git-svn-id: svn://svn.freebsd.org/base/stable/10@268645 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f --- cddl/contrib/opensolaris/cmd/zdb/zdb.c | 39 +++++++++++++++++++++++++- 1 file changed, 38 insertions(+), 1 deletion(-) diff --git a/cddl/contrib/opensolaris/cmd/zdb/zdb.c b/cddl/contrib/opensolaris/cmd/zdb/zdb.c index 61e80714a..ac4ea040f 100644 --- a/cddl/contrib/opensolaris/cmd/zdb/zdb.c +++ b/cddl/contrib/opensolaris/cmd/zdb/zdb.c @@ -2108,6 +2108,8 @@ typedef struct zdb_blkstats { uint64_t zb_lsize; uint64_t zb_psize; uint64_t zb_count; + uint64_t zb_gangs; + uint64_t zb_ditto_samevdev; uint64_t zb_psize_histogram[PSIZE_HISTO_SIZE]; } zdb_blkstats_t; @@ -2155,6 +2157,7 @@ zdb_count_block(zdb_cb_t *zcb, zilog_t *zilog, const blkptr_t *bp, for (int i = 0; i < 4; i++) { int l = (i < 2) ? BP_GET_LEVEL(bp) : ZB_TOTAL; int t = (i & 1) ? type : ZDB_OT_TOTAL; + int equal; zdb_blkstats_t *zb = &zcb->zcb_type[l][t]; zb->zb_asize += BP_GET_ASIZE(bp); @@ -2162,6 +2165,27 @@ zdb_count_block(zdb_cb_t *zcb, zilog_t *zilog, const blkptr_t *bp, zb->zb_psize += BP_GET_PSIZE(bp); zb->zb_count++; zb->zb_psize_histogram[BP_GET_PSIZE(bp) >> SPA_MINBLOCKSHIFT]++; + + zb->zb_gangs += BP_COUNT_GANG(bp); + + switch (BP_GET_NDVAS(bp)) { + case 2: + if (DVA_GET_VDEV(&bp->blk_dva[0]) == + DVA_GET_VDEV(&bp->blk_dva[1])) + zb->zb_ditto_samevdev++; + break; + case 3: + equal = (DVA_GET_VDEV(&bp->blk_dva[0]) == + DVA_GET_VDEV(&bp->blk_dva[1])) + + (DVA_GET_VDEV(&bp->blk_dva[0]) == + DVA_GET_VDEV(&bp->blk_dva[2])) + + (DVA_GET_VDEV(&bp->blk_dva[1]) == + DVA_GET_VDEV(&bp->blk_dva[2])); + if (equal != 0) + zb->zb_ditto_samevdev++; + break; + } + } if (dump_opt['L']) @@ -2552,6 +2576,8 @@ dump_block_stats(spa_t *spa) (void) printf("\n"); (void) printf("\tbp count: %10llu\n", (u_longlong_t)tzb->zb_count); + (void) printf("\tganged count: %10llu\n", + (longlong_t)tzb->zb_gangs); (void) printf("\tbp logical: %10llu avg: %6llu\n", (u_longlong_t)tzb->zb_lsize, (u_longlong_t)(tzb->zb_lsize / tzb->zb_count)); @@ -2573,6 +2599,11 @@ dump_block_stats(spa_t *spa) (void) printf("\tSPA allocated: %10llu used: %5.2f%%\n", (u_longlong_t)norm_alloc, 100.0 * norm_alloc / norm_space); + if (tzb->zb_ditto_samevdev != 0) { + (void) printf("\tDittoed blocks on same vdev: %llu\n", + (longlong_t)tzb->zb_ditto_samevdev); + } + if (dump_opt['b'] >= 2) { int l, t, level; (void) printf("\nBlocks\tLSIZE\tPSIZE\tASIZE" @@ -2580,7 +2611,7 @@ dump_block_stats(spa_t *spa) for (t = 0; t <= ZDB_OT_TOTAL; t++) { char csize[32], lsize[32], psize[32], asize[32]; - char avg[32]; + char avg[32], gang[32]; char *typename; if (t < DMU_OT_NUMTYPES) @@ -2621,6 +2652,7 @@ dump_block_stats(spa_t *spa) zdb_nicenum(zb->zb_psize, psize); zdb_nicenum(zb->zb_asize, asize); zdb_nicenum(zb->zb_asize / zb->zb_count, avg); + zdb_nicenum(zb->zb_gangs, gang); (void) printf("%6s\t%5s\t%5s\t%5s\t%5s" "\t%5.2f\t%6.2f\t", @@ -2634,6 +2666,11 @@ dump_block_stats(spa_t *spa) (void) printf(" L%d %s\n", level, typename); + if (dump_opt['b'] >= 3 && zb->zb_gangs > 0) { + (void) printf("\t number of ganged " + "blocks: %s\n", gang); + } + if (dump_opt['b'] >= 4) { (void) printf("psize " "(in 512-byte sectors): " -- 2.45.0