Hello.
Starting with a version introduced last year (IIRC around April) Defraggler became very slow on my machine.
Here is a log extract (file paths concealed) during defragmentation.
Thank you for reviewing.
[2011-11-09] [14:43:20.990] 010ac 1 CDefragmentation::DefragPath#793 Path: "__file_15__" [2011-11-09] [14:43:20.991] 010ac 1 VolumeUtils::IsDriveSSD#199 Rotational speed of drive: C is 0 [2011-11-09] [14:43:20.991] 010ac 1 CDefragmentation::DefragmentFile#897 DefragmentFile for "__file_15__" entered [2011-11-09] [14:43:20.991] 010ac 1 CDefragmentation::DefragmentFile#989 DefragmentFile move file start __file_15__ [2011-11-09] [14:43:20.991] 010ac 1 CDefragmentation::MoveFileW#1112 MoveFile start 0xBCC [2011-11-09] [14:43:21.166] 010ac 1 CDefragmentation::MoveFileTo#1209 MoveFileTo started file:0xBCC, lcn:9323031 [2011-11-09] [14:43:21.167] 010ac 1 VolumeUtils::IsDriveSSD#199 Rotational speed of drive: C is 0 [2011-11-09] [14:43:21.295] 010ac 1 CDefragmentation::MoveFileTo#1239 MoveFileTo succeeded with result=0x0 [2011-11-09] [14:43:21.295] 010ac 1 CDefragmentation::MoveFileW#1153 MoveFile ends for 0xBCC [2011-11-09] [14:43:21.295] 010ac 1 CDefragmentation::MoveFileW#1112 MoveFile start 0xBCC [2011-11-09] [14:43:21.471] 010ac 1 CDefragmentation::MoveFileW#1153 MoveFile ends for 0xBCC [2011-11-09] [14:43:21.471] 010ac 1 CDefragmentation::MoveFileW#1155 MoveFile failed minLcn=40, maxLcn=9323031, clusters=41; status=0xE0000001 [2011-11-09] [14:43:21.471] 010ac 1 CDefragmentation::DefragmentFile#1012 DefragmentFile end __file_15__; STATUS = 0x0 [2011-11-09] [14:43:22.256] 0115c 1 CVolume::UpdateDriveMap#356 Map generated in 0.59093 seconds. [2011-11-09] [14:43:25.611] 010ac 1 CDefragmentation::DefragPath#793 Path: "__file_16__" [2011-11-09] [14:43:25.612] 010ac 1 VolumeUtils::IsDriveSSD#199 Rotational speed of drive: C is 0 [2011-11-09] [14:43:25.612] 010ac 1 CDefragmentation::DefragmentFile#897 DefragmentFile for "__file_16__" entered [2011-11-09] [14:43:25.612] 010ac 1 CDefragmentation::DefragmentFile#989 DefragmentFile move file start __file_16__ [2011-11-09] [14:43:25.612] 010ac 1 CDefragmentation::MoveFileW#1112 MoveFile start 0xBDC [2011-11-09] [14:43:25.792] 010ac 1 CDefragmentation::MoveFileTo#1209 MoveFileTo started file:0xBDC, lcn:9596080 [2011-11-09] [14:43:25.793] 010ac 1 VolumeUtils::IsDriveSSD#199 Rotational speed of drive: C is 0 [2011-11-09] [14:43:25.965] 010ac 1 CDefragmentation::MoveFileTo#1239 MoveFileTo succeeded with result=0x0 [2011-11-09] [14:43:25.965] 010ac 1 CDefragmentation::MoveFileW#1153 MoveFile ends for 0xBDC [2011-11-09] [14:43:25.965] 010ac 1 CDefragmentation::MoveFileW#1112 MoveFile start 0xBDC [2011-11-09] [14:43:26.145] 010ac 1 CDefragmentation::MoveFileW#1153 MoveFile ends for 0xBDC [2011-11-09] [14:43:26.145] 010ac 1 CDefragmentation::MoveFileW#1155 MoveFile failed minLcn=57, maxLcn=9596080, clusters=58; status=0xE0000001 [2011-11-09] [14:43:26.145] 010ac 1 CDefragmentation::DefragmentFile#1012 DefragmentFile end __file_16__; STATUS = 0x0 [2011-11-09] [14:43:26.883] 0115c 1 CVolume::UpdateDriveMap#356 Map generated in 0.59158 seconds. [2011-11-09] [14:43:30.295] 010ac 1 CDefragmentation::DefragPath#793 Path: "__file_17__" [2011-11-09] [14:43:30.296] 010ac 1 VolumeUtils::IsDriveSSD#199 Rotational speed of drive: C is 0 [2011-11-09] [14:43:30.296] 010ac 1 CDefragmentation::DefragmentFile#897 DefragmentFile for "__file_17__" entered [2011-11-09] [14:43:30.296] 010ac 1 CDefragmentation::DefragmentFile#989 DefragmentFile move file start __file_17__ [2011-11-09] [14:43:30.296] 010ac 1 CDefragmentation::MoveFileW#1112 MoveFile start 0xBEC [2011-11-09] [14:43:30.471] 010ac 1 CDefragmentation::MoveFileTo#1209 MoveFileTo started file:0xBEC, lcn:9326196 [2011-11-09] [14:43:30.472] 010ac 1 VolumeUtils::IsDriveSSD#199 Rotational speed of drive: C is 0 [2011-11-09] [14:43:30.605] 010ac 1 CDefragmentation::MoveFileTo#1239 MoveFileTo succeeded with result=0x0 [2011-11-09] [14:43:30.605] 010ac 1 CDefragmentation::MoveFileW#1153 MoveFile ends for 0xBEC [2011-11-09] [14:43:30.605] 010ac 1 CDefragmentation::MoveFileW#1112 MoveFile start 0xBEC [2011-11-09] [14:43:30.780] 010ac 1 CDefragmentation::MoveFileW#1153 MoveFile ends for 0xBEC [2011-11-09] [14:43:30.780] 010ac 1 CDefragmentation::MoveFileW#1155 MoveFile failed minLcn=40, maxLcn=9326196, clusters=41; status=0xE0000001 [2011-11-09] [14:43:30.781] 010ac 1 CDefragmentation::DefragmentFile#1012 DefragmentFile end __file_17__; STATUS = 0x0 [2011-11-09] [14:43:31.563] 0115c 1 CVolume::UpdateDriveMap#356 Map generated in 0.59280 seconds. [2011-11-09] [14:43:34.919] 010ac 1 CDefragmentation::DefragPath#793 Path: "__file_18__" [2011-11-09] [14:43:34.920] 010ac 1 VolumeUtils::IsDriveSSD#199 Rotational speed of drive: C is 0 [2011-11-09] [14:43:34.920] 010ac 1 CDefragmentation::DefragmentFile#897 DefragmentFile for "__file_18__" entered [2011-11-09] [14:43:34.920] 010ac 1 CDefragmentation::DefragmentFile#989 DefragmentFile move file start __file_18__ [2011-11-09] [14:43:34.920] 010ac 1 CDefragmentation::MoveFileW#1112 MoveFile start 0xBFC [2011-11-09] [14:43:35.095] 010ac 1 CDefragmentation::MoveFileTo#1209 MoveFileTo started file:0xBFC, lcn:9338021 [2011-11-09] [14:43:35.097] 010ac 1 VolumeUtils::IsDriveSSD#199 Rotational speed of drive: C is 0 [2011-11-09] [14:43:35.224] 010ac 1 CDefragmentation::MoveFileTo#1239 MoveFileTo succeeded with result=0x0 [2011-11-09] [14:43:35.224] 010ac 1 CDefragmentation::MoveFileW#1153 MoveFile ends for 0xBFC [2011-11-09] [14:43:35.224] 010ac 1 CDefragmentation::MoveFileW#1112 MoveFile start 0xBFC [2011-11-09] [14:43:35.398] 010ac 1 CDefragmentation::MoveFileW#1153 MoveFile ends for 0xBFC [2011-11-09] [14:43:35.398] 010ac 1 CDefragmentation::MoveFileW#1155 MoveFile failed minLcn=41, maxLcn=9338021, clusters=42; status=0xE0000001 [2011-11-09] [14:43:35.398] 010ac 1 CDefragmentation::DefragmentFile#1012 DefragmentFile end __file_18__; STATUS = 0x0 [2011-11-09] [14:43:36.186] 0115c 1 CVolume::UpdateDriveMap#356 Map generated in 0.59011 seconds.