Commit 74301a38 authored by unknown's avatar unknown
Browse files

Merge mysql.com:/home/jonas/src/mysql-4.1-fix 

into mysql.com:/home/jonas/src/wl2077


ndb/src/kernel/blocks/dbdih/Dbdih.hpp:
  Auto merged
ndb/src/kernel/blocks/dbdih/DbdihMain.cpp:
  Auto merged
ndb/src/kernel/blocks/dbtc/DbtcMain.cpp:
  Auto merged
ndb/test/ndbapi/testReadPerf.cpp:
  Auto merged
parents c3211458 018cac95

ndb/docs/wl2077.txt

0 → 100644
+35 −0
Original line number Diff line number Diff line 


100' * (select 1 from T1 (1M rows) where key = rand());

1 host, 1 ndbd, api co-hosted

results in 1000 rows / sec



		       wo/reset bounds  w/ rb

4.1-read committed     a) 4.9		b) 7.4

4.1-read hold lock     c) 4.7		d) 6.7



wl2077-read committed  6.4 (+30%)	10.8 (+45%)

wl2077-read hold lock  4.6 (-1%)	6.7 (+ 0%)



-- Comparision e)

serial pk:	       10.9'

batched (1000):	       59'

serial uniq index:     8.4'

batched (1000):	       33'

index range (1000):    186'



----



load) testScanPerf -c 1 -d 1 T1

a) testScanPerf -s 100000 -c 0 -d 0 -a 1 -l 0 -r 2 -q 0 T1

b) testScanPerf -s 100000 -c 0 -d 0 -a 1 -l 0 -r 2 -q 1 T1

c) testScanPerf -s 100000 -c 0 -d 0 -a 1 -l 1 -r 2 -q 0 T1

d) testScanPerf -s 100000 -c 0 -d 0 -a 1 -l 1 -r 2 -q 1 T1

e) testReadPerf -i 25 -c 0 -d 0 T1



--- music join		1db-co		2db-co

			

4.1			13s		14s

4.1 wo/ blobs		1.7s		3.2s



wl2077			12s		14s

wl2077 wo/ blobs	1.2s (-30%)	2.5s (-22%)