jmtpfs
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Very slow getattr in some directories
jmtpfs lists directories much slower than go-mtpfs and simple-mtpfs, sometimes over 50 seconds in directories with only one child. The same directories tend to be affected every time for me.
This is especially unfortunate, because jmtpfs reads files the fastest of all of the clients I’ve tried so far.
$ cd /mnt/phone
$ time ls
'Internal shared storage'
ls --color=tty 0.00s user 0.00s system 1% cpu 0.097 total
$ cd Internal\ shared\ storage
$ time ls
Alarms Android Audiobooks DCIM Documents Download Movies Music Notifications Pictures Podcasts Recordings Ringtones
ls --color=tty 0.00s user 0.00s system 0% cpu 1.093 total
$ cd DCIM
$ time ls
Camera
ls --color=tty 0.00s user 0.00s system 0% cpu 54.539 total
$ jmtpfs -s -d /mnt/phone
Device 0 (VID=18d1 and PID=4ee1) is a Google Inc Nexus/Pixel (MTP).
Android device detected, assigning default bug flags
FUSE library version: 2.9.9
nullpath_ok: 0
nopath: 0
utime_omit_ok: 0
unique: 2, opcode: INIT (26), nodeid: 0, insize: 104, pid: 0
INIT: 7.37
flags=0x73fffffb
max_readahead=0x00020000
INIT: 7.19
flags=0x00000011
max_readahead=0x00020000
max_write=0x00020000
max_background=0
congestion_threshold=0
unique: 2, success, outsize: 40
unique: 4, opcode: ACCESS (34), nodeid: 1, insize: 48, pid: 258121
unique: 4, error: -38 (Function not implemented), outsize: 16
unique: 6, opcode: GETATTR (3), nodeid: 1, insize: 56, pid: 258121
getattr /
unique: 6, success, outsize: 120
unique: 8, opcode: OPENDIR (27), nodeid: 1, insize: 48, pid: 314501
unique: 8, success, outsize: 32
unique: 10, opcode: GETATTR (3), nodeid: 1, insize: 56, pid: 314501
getattr /
unique: 10, success, outsize: 120
unique: 12, opcode: READDIR (28), nodeid: 1, insize: 80, pid: 314501
readdir[0] from 0
unique: 12, success, outsize: 128
unique: 14, opcode: LOOKUP (1), nodeid: 1, insize: 64, pid: 314501
LOOKUP /Internal shared storage
getattr /Internal shared storage
NODEID: 2
unique: 14, success, outsize: 144
unique: 16, opcode: READDIR (28), nodeid: 1, insize: 80, pid: 314501
unique: 16, success, outsize: 16
unique: 18, opcode: RELEASEDIR (29), nodeid: 1, insize: 64, pid: 0
unique: 18, success, outsize: 16
unique: 20, opcode: OPENDIR (27), nodeid: 1, insize: 48, pid: 258121
unique: 20, success, outsize: 32
unique: 22, opcode: GETATTR (3), nodeid: 1, insize: 56, pid: 258121
getattr /
unique: 22, success, outsize: 120
unique: 24, opcode: READDIR (28), nodeid: 1, insize: 80, pid: 258121
readdir[0] from 0
unique: 24, success, outsize: 128
unique: 26, opcode: LOOKUP (1), nodeid: 1, insize: 64, pid: 258121
LOOKUP /Internal shared storage
getattr /Internal shared storage
NODEID: 2
unique: 26, success, outsize: 144
unique: 28, opcode: READDIR (28), nodeid: 1, insize: 80, pid: 258121
unique: 28, success, outsize: 16
unique: 30, opcode: RELEASEDIR (29), nodeid: 1, insize: 64, pid: 0
unique: 30, success, outsize: 16
unique: 32, opcode: LOOKUP (1), nodeid: 1, insize: 66, pid: 258121
LOOKUP /Internal\ shared\ storage
getattr /Internal\ shared\ storage
unique: 32, error: -2 (No such file or directory), outsize: 16
unique: 34, opcode: LOOKUP (1), nodeid: 1, insize: 66, pid: 258121
LOOKUP /Internal\ shared\ storage
getattr /Internal\ shared\ storage
unique: 34, error: -2 (No such file or directory), outsize: 16
unique: 36, opcode: GETATTR (3), nodeid: 1, insize: 56, pid: 258121
getattr /
unique: 36, success, outsize: 120
unique: 38, opcode: OPENDIR (27), nodeid: 2, insize: 48, pid: 314587
unique: 38, success, outsize: 32
unique: 40, opcode: GETATTR (3), nodeid: 2, insize: 56, pid: 314587
getattr /Internal shared storage
unique: 40, success, outsize: 120
unique: 42, opcode: READDIR (28), nodeid: 2, insize: 80, pid: 314587
readdir[0] from 0
unique: 42, success, outsize: 536
unique: 44, opcode: LOOKUP (1), nodeid: 2, insize: 49, pid: 314587
LOOKUP /Internal shared storage/Pictures
getattr /Internal shared storage/Pictures
NODEID: 3
unique: 44, success, outsize: 144
unique: 46, opcode: LOOKUP (1), nodeid: 2, insize: 51, pid: 314587
LOOKUP /Internal shared storage/Audiobooks
getattr /Internal shared storage/Audiobooks
NODEID: 4
unique: 46, success, outsize: 144
unique: 48, opcode: LOOKUP (1), nodeid: 2, insize: 47, pid: 314587
LOOKUP /Internal shared storage/Alarms
getattr /Internal shared storage/Alarms
NODEID: 5
unique: 48, success, outsize: 144
unique: 50, opcode: LOOKUP (1), nodeid: 2, insize: 51, pid: 314587
LOOKUP /Internal shared storage/Recordings
getattr /Internal shared storage/Recordings
NODEID: 6
unique: 50, success, outsize: 144
unique: 52, opcode: LOOKUP (1), nodeid: 2, insize: 48, pid: 314587
LOOKUP /Internal shared storage/Android
getattr /Internal shared storage/Android
NODEID: 7
unique: 52, success, outsize: 144
unique: 54, opcode: LOOKUP (1), nodeid: 2, insize: 46, pid: 314587
LOOKUP /Internal shared storage/Music
getattr /Internal shared storage/Music
NODEID: 8
unique: 54, success, outsize: 144
unique: 56, opcode: LOOKUP (1), nodeid: 2, insize: 50, pid: 314587
LOOKUP /Internal shared storage/Documents
getattr /Internal shared storage/Documents
NODEID: 9
unique: 56, success, outsize: 144
unique: 58, opcode: LOOKUP (1), nodeid: 2, insize: 49, pid: 314587
LOOKUP /Internal shared storage/Podcasts
getattr /Internal shared storage/Podcasts
NODEID: 10
unique: 58, success, outsize: 144
unique: 60, opcode: LOOKUP (1), nodeid: 2, insize: 47, pid: 314587
LOOKUP /Internal shared storage/Movies
getattr /Internal shared storage/Movies
NODEID: 11
unique: 60, success, outsize: 144
unique: 62, opcode: LOOKUP (1), nodeid: 2, insize: 45, pid: 314587
LOOKUP /Internal shared storage/DCIM
getattr /Internal shared storage/DCIM
NODEID: 12
unique: 62, success, outsize: 144
unique: 64, opcode: LOOKUP (1), nodeid: 2, insize: 54, pid: 314587
LOOKUP /Internal shared storage/Notifications
getattr /Internal shared storage/Notifications
NODEID: 13
unique: 64, success, outsize: 144
unique: 66, opcode: LOOKUP (1), nodeid: 2, insize: 49, pid: 314587
LOOKUP /Internal shared storage/Download
getattr /Internal shared storage/Download
NODEID: 14
unique: 66, success, outsize: 144
unique: 68, opcode: LOOKUP (1), nodeid: 2, insize: 50, pid: 314587
LOOKUP /Internal shared storage/Ringtones
getattr /Internal shared storage/Ringtones
NODEID: 15
unique: 68, success, outsize: 144
unique: 70, opcode: READDIR (28), nodeid: 2, insize: 80, pid: 314587
unique: 70, success, outsize: 16
unique: 72, opcode: RELEASEDIR (29), nodeid: 2, insize: 64, pid: 0
unique: 72, success, outsize: 16
unique: 74, opcode: OPENDIR (27), nodeid: 2, insize: 48, pid: 258121
unique: 74, success, outsize: 32
unique: 76, opcode: GETATTR (3), nodeid: 2, insize: 56, pid: 258121
getattr /Internal shared storage
unique: 76, success, outsize: 120
unique: 78, opcode: READDIR (28), nodeid: 2, insize: 80, pid: 258121
readdir[0] from 0
unique: 78, success, outsize: 536
unique: 80, opcode: LOOKUP (1), nodeid: 2, insize: 49, pid: 258121
LOOKUP /Internal shared storage/Pictures
getattr /Internal shared storage/Pictures
NODEID: 3
unique: 80, success, outsize: 144
unique: 82, opcode: LOOKUP (1), nodeid: 2, insize: 51, pid: 258121
LOOKUP /Internal shared storage/Audiobooks
getattr /Internal shared storage/Audiobooks
NODEID: 4
unique: 82, success, outsize: 144
unique: 84, opcode: LOOKUP (1), nodeid: 2, insize: 47, pid: 258121
LOOKUP /Internal shared storage/Alarms
getattr /Internal shared storage/Alarms
NODEID: 5
unique: 84, success, outsize: 144
unique: 86, opcode: LOOKUP (1), nodeid: 2, insize: 51, pid: 258121
LOOKUP /Internal shared storage/Recordings
getattr /Internal shared storage/Recordings
NODEID: 6
unique: 86, success, outsize: 144
unique: 88, opcode: LOOKUP (1), nodeid: 2, insize: 48, pid: 258121
LOOKUP /Internal shared storage/Android
getattr /Internal shared storage/Android
NODEID: 7
unique: 88, success, outsize: 144
unique: 90, opcode: LOOKUP (1), nodeid: 2, insize: 46, pid: 258121
LOOKUP /Internal shared storage/Music
getattr /Internal shared storage/Music
NODEID: 8
unique: 90, success, outsize: 144
unique: 92, opcode: LOOKUP (1), nodeid: 2, insize: 50, pid: 258121
LOOKUP /Internal shared storage/Documents
getattr /Internal shared storage/Documents
NODEID: 9
unique: 92, success, outsize: 144
unique: 94, opcode: LOOKUP (1), nodeid: 2, insize: 49, pid: 258121
LOOKUP /Internal shared storage/Podcasts
getattr /Internal shared storage/Podcasts
NODEID: 10
unique: 94, success, outsize: 144
unique: 96, opcode: LOOKUP (1), nodeid: 2, insize: 47, pid: 258121
LOOKUP /Internal shared storage/Movies
getattr /Internal shared storage/Movies
NODEID: 11
unique: 96, success, outsize: 144
unique: 98, opcode: LOOKUP (1), nodeid: 2, insize: 45, pid: 258121
LOOKUP /Internal shared storage/DCIM
getattr /Internal shared storage/DCIM
NODEID: 12
unique: 98, success, outsize: 144
unique: 100, opcode: LOOKUP (1), nodeid: 2, insize: 54, pid: 258121
LOOKUP /Internal shared storage/Notifications
getattr /Internal shared storage/Notifications
NODEID: 13
unique: 100, success, outsize: 144
unique: 102, opcode: LOOKUP (1), nodeid: 2, insize: 49, pid: 258121
LOOKUP /Internal shared storage/Download
getattr /Internal shared storage/Download
NODEID: 14
unique: 102, success, outsize: 144
unique: 104, opcode: LOOKUP (1), nodeid: 2, insize: 50, pid: 258121
LOOKUP /Internal shared storage/Ringtones
getattr /Internal shared storage/Ringtones
NODEID: 15
unique: 104, success, outsize: 144
unique: 106, opcode: READDIR (28), nodeid: 2, insize: 80, pid: 258121
unique: 106, success, outsize: 16
unique: 108, opcode: RELEASEDIR (29), nodeid: 2, insize: 64, pid: 0
unique: 108, success, outsize: 16
unique: 110, opcode: GETATTR (3), nodeid: 2, insize: 56, pid: 258121
getattr /Internal shared storage
unique: 110, success, outsize: 120
unique: 112, opcode: LOOKUP (1), nodeid: 1, insize: 64, pid: 258121
LOOKUP /Internal shared storage
getattr /Internal shared storage
NODEID: 2
unique: 112, success, outsize: 144
unique: 114, opcode: OPENDIR (27), nodeid: 12, insize: 48, pid: 314714
unique: 114, success, outsize: 32
unique: 116, opcode: GETATTR (3), nodeid: 12, insize: 56, pid: 314714
getattr /Internal shared storage/DCIM
unique: 116, success, outsize: 120
unique: 118, opcode: READDIR (28), nodeid: 12, insize: 80, pid: 314714
readdir[0] from 0
unique: 118, success, outsize: 112
unique: 120, opcode: LOOKUP (1), nodeid: 12, insize: 47, pid: 314714
LOOKUP /Internal shared storage/DCIM/Camera
getattr /Internal shared storage/DCIM/Camera
[50-second delay]
NODEID: 16
unique: 120, success, outsize: 144
unique: 122, opcode: READDIR (28), nodeid: 12, insize: 80, pid: 314714
unique: 122, success, outsize: 16
unique: 124, opcode: RELEASEDIR (29), nodeid: 12, insize: 64, pid: 0
unique: 124, success, outsize: 16