* ./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(11689) MB: 0.034302
index: true op: slowmod lock: NumberLong(11554) MB: 0.013364

{ "$rename" : { "int" : "abc" } }
index: true op: slowmod lock: NumberLong(11649) MB: 0.034307
index: true op: no-op lock: NumberLong(51) MB: 0.001066

{ "$rename" : { "int" : "abcd" } }
index: true op: slowmod lock: NumberLong(11515) MB: 0.034309
index: true op: no-op lock: NumberLong(51) MB: 0.001067

{ "$set" : { "foo" : 1 } }
index: true op: slowmod lock: NumberLong(11626) MB: 0.034279
index: true op: no-op lock: NumberLong(56) MB: 0.001063

{ "$set" : { "int" : 5 } }
index: true op: slowmod lock: NumberLong(11701) MB: 0.034218
index: true op: no-op lock: NumberLong(51) MB: 0.001063

{ "$set" : { "arr" : [ 2 ] } }
index: true op: slowmod lock: NumberLong(11744) MB: 0.034222
index: true op: no-op lock: NumberLong(53) MB: 0.001071

{ "$addToSet" : { "arr" : 2 } }
index: true op: slowmod lock: NumberLong(11543) MB: 0.034319
index: true op: no-op lock: NumberLong(54) MB: 0.001753

{ "$pop" : { "arr" : 1 } }
index: true op: slowmod lock: NumberLong(11757) MB: 0.034301
index: true op: no-op lock: NumberLong(49) MB: 0.001063

{ "$pull" : { "arr" : 1 } }
index: true op: slowmod lock: NumberLong(11763) MB: 0.034358
index: true op: no-op lock: NumberLong(49) MB: 0.001064

{ "$push" : { "arr" : 1 } }
index: true op: slowmod lock: NumberLong(11614) MB: 0.034278
index: true op: slowmod lock: NumberLong(11690) MB: 0.005263

{ "$inc" : { "arr.0" : 1 } }
index: true op: slowmod lock: NumberLong(11662) MB: 0.03422
index: true op: slowmod lock: NumberLong(11711) MB: 0.014051

{ "$set" : { "arr.1" : 1 } }
index: true op: slowmod lock: NumberLong(12155) MB: 0.034291
index: true op: no-op lock: NumberLong(55) MB: 0.001065

{ "$set" : { "arr.0" : 1 } }
index: true op: no-op lock: NumberLong(46) MB: 0.030091
index: true op: no-op lock: NumberLong(53) MB: 0.001065

{ "$set" : { "arr.0" : 2 } }
index: true op: slowmod lock: NumberLong(11843) MB: 0.034228
index: true op: no-op lock: NumberLong(51) MB: 0.001065

{ "$unset" : { "arr.0" : 1 } }
index: true op: slowmod lock: NumberLong(11854) MB: 0.03432
index: true op: slowmod lock: NumberLong(11541) MB: 0.001752

{ "$unset" : { "arr.1" : 1 } }
index: true op: no-op lock: NumberLong(53) MB: 0.030301
index: true op: no-op lock: NumberLong(49) MB: 0.001067

{ "$inc" : { "int" : 1 } }
index: false op: fastmod lock: NumberLong(89) MB: 0.001081
index: false op: fastmod lock: NumberLong(80) MB: 0.001081

{ "$rename" : { "int" : "abc" } }
index: false op: slowmod lock: NumberLong(11539) MB: 0.005243
index: false op: no-op lock: NumberLong(51) MB: 0.001066

{ "$rename" : { "int" : "abcd" } }
index: false op: slowmod lock: NumberLong(11508) MB: 0.005245
index: false op: no-op lock: NumberLong(51) MB: 0.001067

{ "$set" : { "foo" : 1 } }
index: false op: slowmod lock: NumberLong(11511) MB: 0.005253
index: false op: no-op lock: NumberLong(54) MB: 0.001063

{ "$set" : { "int" : 5 } }
index: false op: fastmod lock: NumberLong(89) MB: 0.001081
index: false op: no-op lock: NumberLong(50) MB: 0.001063

{ "$set" : { "arr" : [ 2 ] } }
index: false op: slowmod lock: NumberLong(11653) MB: 0.005167
index: false op: no-op lock: NumberLong(55) MB: 0.001071

{ "$addToSet" : { "arr" : 2 } }
index: false op: slowmod lock: NumberLong(11535) MB: 0.005941
index: false op: no-op lock: NumberLong(54) MB: 0.001068

{ "$pop" : { "arr" : 1 } }
index: false op: slowmod lock: NumberLong(11602) MB: 0.005229
index: false op: no-op lock: NumberLong(50) MB: 0.001063

{ "$pull" : { "arr" : 1 } }
index: false op: slowmod lock: NumberLong(11578) MB: 0.00523
index: false op: no-op lock: NumberLong(51) MB: 0.001064

{ "$push" : { "arr" : 1 } }
index: false op: slowmod lock: NumberLong(11878) MB: 0.005252
index: false op: slowmod lock: NumberLong(11629) MB: 0.005263

{ "$inc" : { "arr.0" : 1 } }
index: false op: fastmod lock: NumberLong(88) MB: 0.001768
index: false op: fastmod lock: NumberLong(81) MB: 0.001083

{ "$set" : { "arr.1" : 1 } }
index: false op: slowmod lock: NumberLong(11687) MB: 0.005253
index: false op: no-op lock: NumberLong(54) MB: 0.001065

{ "$set" : { "arr.0" : 1 } }
index: false op: no-op lock: NumberLong(62) MB: 0.001065
index: false op: no-op lock: NumberLong(50) MB: 0.001065

{ "$set" : { "arr.0" : 2 } }
index: false op: fastmod lock: NumberLong(97) MB: 0.001083
index: false op: no-op lock: NumberLong(51) MB: 0.001065

{ "$unset" : { "arr.0" : 1 } }
index: false op: slowmod lock: NumberLong(11659) MB: 0.005236
index: false op: slowmod lock: NumberLong(11570) MB: 0.001067

{ "$unset" : { "arr.1" : 1 } }
index: false op: no-op lock: NumberLong(59) MB: 0.001067
index: false op: no-op lock: NumberLong(47) MB: 0.001067