* ./mongo ~/git/mongo/jstests/perf/update1.js 
MongoDB shell version: 2.6.0-rc1-pre-
connecting to: test
{ "$inc" : { "int" : 1 } }
index: true op: slowmod lock: NumberLong(21869) MB: 10.515963
index: true op: slowmod lock: NumberLong(16198) MB: 10.495113

{ "$rename" : { "int" : "abc" } }
index: true op: slowmod lock: NumberLong(16137) MB: 10.515967
index: true op: no-op lock: NumberLong(52) MB: 0.001066

{ "$rename" : { "int" : "abcd" } }
index: true op: slowmod lock: NumberLong(16203) MB: 10.516037
index: true op: no-op lock: NumberLong(52) MB: 0.001067

{ "$set" : { "foo" : 1 } }
index: true op: slowmod lock: NumberLong(16204) MB: 10.515935
index: true op: no-op lock: NumberLong(54) MB: 0.001063

{ "$set" : { "int" : 5 } }
index: true op: slowmod lock: NumberLong(16184) MB: 10.515963
index: true op: no-op lock: NumberLong(53) MB: 0.001063

{ "$set" : { "arr" : [ 2 ] } }
index: true op: slowmod lock: NumberLong(16346) MB: 10.515959
index: true op: no-op lock: NumberLong(57) MB: 0.001071

{ "$addToSet" : { "arr" : 2 } }
index: true op: slowmod lock: NumberLong(16357) MB: 10.515967
index: true op: no-op lock: NumberLong(53) MB: 0.001068

{ "$pop" : { "arr" : 1 } }
index: true op: slowmod lock: NumberLong(16379) MB: 10.516634
index: true op: no-op lock: NumberLong(50) MB: 0.001063

{ "$pull" : { "arr" : 1 } }
index: true op: slowmod lock: NumberLong(16431) MB: 10.515942
index: true op: no-op lock: NumberLong(51) MB: 0.001064

{ "$push" : { "arr" : 1 } }
index: true op: slowmod lock: NumberLong(16311) MB: 10.515934
index: true op: slowmod lock: NumberLong(16335) MB: 10.486927

{ "$inc" : { "arr.0" : 1 } }
index: true op: slowmod lock: NumberLong(16302) MB: 10.515945
index: true op: slowmod lock: NumberLong(17435) MB: 10.495111

{ "$set" : { "arr.1" : 1 } }
index: true op: slowmod lock: NumberLong(16716) MB: 10.515939
index: true op: no-op lock: NumberLong(53) MB: 0.001065

{ "$set" : { "arr.0" : 1 } }
index: true op: no-op lock: NumberLong(45) MB: 0.030075
index: true op: no-op lock: NumberLong(52) MB: 0.001065

{ "$set" : { "arr.0" : 2 } }
index: true op: slowmod lock: NumberLong(16374) MB: 10.516013
index: true op: no-op lock: NumberLong(52) MB: 0.001065

{ "$unset" : { "arr.0" : 1 } }
index: true op: slowmod lock: NumberLong(16394) MB: 10.515948
index: true op: slowmod lock: NumberLong(16360) MB: 10.4869

{ "$unset" : { "arr.1" : 1 } }
index: true op: no-op lock: NumberLong(44) MB: 0.030085
index: true op: no-op lock: NumberLong(50) MB: 0.001067

{ "$inc" : { "int" : 1 } }
index: false op: fastmod lock: NumberLong(89) MB: 0.001081
index: false op: fastmod lock: NumberLong(81) MB: 0.001081

{ "$rename" : { "int" : "abc" } }
index: false op: slowmod lock: NumberLong(16245) MB: 10.486907
index: false op: no-op lock: NumberLong(54) MB: 0.001066

{ "$rename" : { "int" : "abcd" } }
index: false op: slowmod lock: NumberLong(16092) MB: 10.486909
index: false op: no-op lock: NumberLong(52) MB: 0.001067

{ "$set" : { "foo" : 1 } }
index: false op: slowmod lock: NumberLong(16232) MB: 10.486917
index: false op: no-op lock: NumberLong(55) MB: 0.001063

{ "$set" : { "int" : 5 } }
index: false op: fastmod lock: NumberLong(92) MB: 0.001081
index: false op: no-op lock: NumberLong(53) MB: 0.001063

{ "$set" : { "arr" : [ 2 ] } }
index: false op: slowmod lock: NumberLong(16549) MB: 10.486912
index: false op: no-op lock: NumberLong(56) MB: 0.001071

{ "$addToSet" : { "arr" : 2 } }
index: false op: slowmod lock: NumberLong(16392) MB: 10.48692
index: false op: no-op lock: NumberLong(53) MB: 0.001753

{ "$pop" : { "arr" : 1 } }
index: false op: slowmod lock: NumberLong(16423) MB: 10.486893
index: false op: no-op lock: NumberLong(52) MB: 0.001063

{ "$pull" : { "arr" : 1 } }
index: false op: slowmod lock: NumberLong(16372) MB: 10.486894
index: false op: no-op lock: NumberLong(51) MB: 0.001064

{ "$push" : { "arr" : 1 } }
index: false op: slowmod lock: NumberLong(16482) MB: 10.486916
index: false op: slowmod lock: NumberLong(16513) MB: 10.486927

{ "$inc" : { "arr.0" : 1 } }
index: false op: fastmod lock: NumberLong(96) MB: 0.001083
index: false op: fastmod lock: NumberLong(85) MB: 0.001768

{ "$set" : { "arr.1" : 1 } }
index: false op: slowmod lock: NumberLong(16330) MB: 10.486917
index: false op: no-op lock: NumberLong(52) MB: 0.001065

{ "$set" : { "arr.0" : 1 } }
index: false op: no-op lock: NumberLong(73) MB: 0.001065
index: false op: no-op lock: NumberLong(49) MB: 0.001065

{ "$set" : { "arr.0" : 2 } }
index: false op: fastmod lock: NumberLong(91) MB: 0.001083
index: false op: no-op lock: NumberLong(54) MB: 0.001065

{ "$unset" : { "arr.0" : 1 } }
index: false op: slowmod lock: NumberLong(16266) MB: 10.4869
index: false op: slowmod lock: NumberLong(16370) MB: 10.4869

{ "$unset" : { "arr.1" : 1 } }
index: false op: no-op lock: NumberLong(60) MB: 0.001067
index: false op: no-op lock: NumberLong(48) MB: 0.001067