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osdmaptool: tests for --test-map-pgs

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Signed-off-by: Loic Dachary <loic@dachary.org>
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Loic Dachary 2014-02-07 12:13:27 +01:00 committed by Sage Weil
parent b98eaa5cc0
commit 45d31f09a2
1 changed files with 52 additions and 0 deletions
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52
src/test/cli/osdmaptool/test-map-pgs.t Normal file
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$ NUM_OSDS=500
$ POOL_COUNT=3 # data + metadata + rbd
$ SIZE=3
$ PG_BITS=4
#
# create an osdmap with a few hundred devices and a realistic crushmap
#
$ OSD_MAP="osdmap"
$ osdmaptool --osd_pool_default_size $SIZE --pg_bits $PG_BITS --createsimple $NUM_OSDS "$OSD_MAP" > /dev/null
osdmaptool: osdmap file 'osdmap'
$ CRUSH_MAP="crushmap"
$ CEPH_ARGS="--debug-crush 0" crushtool --outfn "$CRUSH_MAP" --build --num_osds $NUM_OSDS node straw 10 rack straw 10 root straw 0
$ osdmaptool --import-crush "$CRUSH_MAP" "$OSD_MAP" > /dev/null
osdmaptool: osdmap file 'osdmap'
$ OUT="$TESTDIR/out"
#
# --test-map-pgs
#
$ osdmaptool --mark-up-in --test-map-pgs "$OSD_MAP" > "$OUT"
osdmaptool: osdmap file 'osdmap'
$ PG_NUM=$(($NUM_OSDS << $PG_BITS))
$ grep "pg_num $PG_NUM" "$OUT" || cat $OUT
pool 0 pg_num 8000
pool 1 pg_num 8000
pool 2 pg_num 8000
$ TOTAL=$((POOL_COUNT * $PG_NUM))
$ PATTERN=$(echo "size $SIZE\t$TOTAL")
$ grep "$PATTERN" $OUT || cat "$OUT"
size 3\t24000 (esc)
$ STATS_CRUSH=$(grep '^ avg ' "$OUT")
#
# --test-map-pgs --test-random is expected to change nothing regarding the totals
#
$ osdmaptool --mark-up-in --test-random --test-map-pgs "$OSD_MAP" > "$OUT"
osdmaptool: osdmap file 'osdmap'
$ PG_NUM=$(($NUM_OSDS << $PG_BITS))
$ grep "pg_num $PG_NUM" "$OUT" || cat $OUT
pool 0 pg_num 8000
pool 1 pg_num 8000
pool 2 pg_num 8000
$ TOTAL=$((POOL_COUNT * $PG_NUM))
$ PATTERN=$(echo "size $SIZE\t$TOTAL")
$ grep "$PATTERN" $OUT || cat "$OUT"
size 3\t24000 (esc)
$ STATS_RANDOM=$(grep '^ avg ' "$OUT")
# it is almost impossible to get the same stats with random and crush
# if they are, it most probably means something went wrong somewhere
$ test "$STATS_CRUSH" != "$STATS_RANDOM"
#
# cleanup
#
$ rm -f "$CRUSH_MAP" "$OSD_MAP" "$OUT"