rfjakob

## rsync_speed.txt
$ rsync -P /tmp/1g 127.0.0.1:/tmp/1g.2
1g
  1,073,741,824 100%   22.71MB/s    0:00:45 (xfr#1, to-chk=0/1)

$ rsync -P /tmp/1g -e "ssh -T" 127.0.0.1:/tmp/1g.2
1g
  1,073,741,824 100%   20.39MB/s    0:00:50 (xfr#1, to-chk=0/1)

$ rsync -P /tmp/1g -e "ssh -o Compression=no" 127.0.0.1:/tmp/1g.2
1g

## gvfs-udisks2-volume-monitor.strace.log
osboxes@osboxes:~$ ps auxwww | grep udisk
osboxes   1874  0.1  0.4 377172 10064 ?        Sl   14:57   0:00 /usr/lib/gvfs/gvfs-udisks2-volume-monitor
root      1881  0.1  0.4 382392  9924 ?        Ssl  14:57   0:00 /usr/lib/udisks2/udisksd --no-debug
osboxes   2125  0.0  0.0  21292   984 pts/8    R+   14:59   0:00 grep --color=auto udisk

osboxes@osboxes:~$ sudo strace -f -p 1874
strace: Process 1874 attached with 3 threads
[pid  1880] restart_syscall(<... resuming interrupted restart_syscall ...> <unfinished ...>
[pid  1879] restart_syscall(<... resuming interrupted restart_syscall ...> <unfinished ...>
[pid  1874] restart_syscall(<... resuming interrupted restart_syscall ...>) = 1

## test.log
osboxes@osboxes:~/go/src/github.com/hanwen/go-fuse/nodefs$ uname -a
Linux osboxes 4.15.0-45-generic #48~16.04.1-Ubuntu SMP Tue Jan 29 18:03:48 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
osboxes@osboxes:~/go/src/github.com/hanwen/go-fuse/nodefs$ git describe
v1.0.0-170-g4f40cf4
osboxes@osboxes:~/go/src/github.com/hanwen/go-fuse/nodefs$ go test -run TestReadDir -v
=== RUN   TestReadDir
08:02:31.690637 rx 1: INIT i0 {7.26 Ra 0x20000 AUTO_INVAL_DATA,PARALLEL_DIROPS,NO_OPEN_SUPPORT,POSIX_ACL,HANDLE_KILLPRIV,ATOMIC_O_TRUNC,EXPORT_SUPPORT,BIG_WRITES,IOCTL_DIR,READDIRPLUS_AUTO,ASYNC_DIO,WRITEBACK_CACHE,POSIX_LOCKS,SPLICE_READ,FLOCK_LOCKS,READDIRPLUS,SPLICE_MOVE,ASYNC_READ,DONT_MASK,SPLICE_WRITE}
08:02:31.690746 tx 1:     OK, {7.26 Ra 0x20000 ASYNC_READ,AUTO_INVAL_DATA,PARALLEL_DIROPS,BIG_WRITES,NO_OPEN_SUPPORT,READDIRPLUS 0/0 Wr 0x10000 Tg 0x0}
08:02:31.690870 rx 2: LOOKUP i1 [".go-fuse-epoll-hack"] 20b
08:02:31.690928 tx 2:     2=no such file or directory, {i0 g0 tE=0s tA=0s {M00 SZ=0 L=0 0:0 B0*0 i0:0 A 0.000000 M 0.

## bisect.log
05a3771cbea72f2f7d50be19daa19f3dff2d6163 is the first bad commit
commit 05a3771cbea72f2f7d50be19daa19f3dff2d6163
Author: Kirill Smelkov <kirr@nexedi.com>
Date:   Sat Feb 16 22:21:52 2019 +0300

    fuse: Enable parallel lookup and readdir by default

    After Linux VFS was enhanced to be able to do several lookups and
    readdirs in parallel, FUSE client in Linux, in fear to break existing
    filesystems, explicitly reverted it back to be serial in FUSE exchange

## xfstests.log
fuse-xfstests$ sudo ./check-gocryptfs
[sudo] password for jakob:
gocryptfs v1.7-rc1-67-gbdd5f47-dirty; go-fuse v20170619-82-gc121160-dirty; 2019-02-03 go1.11.4
fuse-xfstests gocryptfs-2018-08-18/d8111119
Sun Feb  3 14:51:49 UTC 2019

FSTYP         -- fuse.gocryptfs
PLATFORM      -- Linux/x86_64 brikett 4.19.12-301.fc29.x86_64
MKFS_OPTIONS  -- /var/tmp/check-gocryptfs/scratchdev
MOUNT_OPTIONS -- -o context=system_u:object_r:root_t:s0 /var/tmp/check-gocryptfs/scratchdev /var/tmp/check-gocryptfs/scratchdir

## xfstests.log
fuse-xfstests$ sudo ./check-gocryptfs
[sudo] password for jakob:
gocryptfs v1.7-rc1-66-gb86cc33; go-fuse v20170619-78-g816463b; 2019-01-24 go1.11.4
fuse-xfstests gocryptfs-2018-08-18/d8111119
Thu Jan 24 07:05:15 UTC 2019

FSTYP         -- fuse.gocryptfs
PLATFORM      -- Linux/x86_64 brikett 4.19.12-301.fc29.x86_64
MKFS_OPTIONS  -- /var/tmp/check-gocryptfs/scratchdev
MOUNT_OPTIONS -- -o context=system_u:object_r:root_t:s0 /var/tmp/check-gocryptfs/scratchdev /var/tmp/check-gocryptfs/scratchdir

## xfstests.log
$ sudo ./check-gocryptfs
gocryptfs v1.7-rc1-66-gb86cc33; go-fuse v20170619-78-gdfd0ceb; 2019-01-23 go1.11.4
fuse-xfstests gocryptfs-2018-08-18/d8111119
Wed Jan 23 21:22:34 UTC 2019

FSTYP         -- fuse.gocryptfs
PLATFORM      -- Linux/x86_64 brikett 4.19.12-301.fc29.x86_64
MKFS_OPTIONS  -- /var/tmp/check-gocryptfs/scratchdev
MOUNT_OPTIONS -- -o context=system_u:object_r:root_t:s0 /var/tmp/check-gocryptfs/scratchdev /var/tmp/check-gocryptfs/scratchdir

## parallel_cp_norecycle.log
OpenSSL enabled
cli args: &main.argContainer{debug:true, init:false, zerokey:false, fusedebug:true, openssl:true, passwd:false, fg:true, version:false, plaintextnames:false, quiet:false, nosyslog:true, wpanic:false, longnames:true, allow_other:false, reverse:false, aessiv:false, nonempty:false, raw64:true, noprealloc:false, speed:false, hkdf:true, serialize_reads:false, forcedecode:false, hh:false, info:false, sharedstorage:false, devrandom:false, fsck:false, trezor:false, dev:false, nodev:false, suid:false, nosuid:false, exec:false, noexec:false, rw:false, ro:false, masterkey:"", mountpoint:"/tmp/tmp.mLggyxBble/b", cipherdir:"/tmp/tmp.mLggyxBble/a", cpuprofile:"", extpass:"echo test", memprofile:"", ko:"", passfile:"", ctlsock:"", fsname:"", force_owner:"", trace:"", exclude:main.multipleStrings(nil), config:"/tmp/tmp.mLggyxBble/a/gocryptfs.conf", notifypid:0, scryptn:16, idle:0, _configCustom:false, _ctlsockFd:net.Listener(nil), _forceOwner:(*fuse.Owner)(nil)}
Reading password from extpass program

## parallel_cp.log

2019/01/20 17:51:49 rx 83920: LOOKUP i1 ["sub_42"] 7b
2019/01/20 17:51:49 rx 83925: FLUSH i172 {Fh 46}
2019/01/20 17:51:49 tx 83925:     OK
2019/01/20 17:51:49 rx 83968: FLUSH i894 {Fh 146}
2019/01/20 17:51:49 tx 83968:     OK
2019/01/20 17:51:49 rx 83969: RELEASE i711 {Fh 185 0x8000  L0}
2019/01/20 17:51:49 tx 83969:     OK
2019/01/20 17:51:49 rx 83970: WRITE i328  8192b
2019/01/20 17:51:49 rx 83924: OPEN i692 {O_RDONLY,0x8000}

## xfstests.log
$ sudo ./check-gocryptfs
[sudo] password for jakob:
gocryptfs v1.7-rc1-36-g99e8b6d; go-fuse v20170619-75-gf520193; 2019-01-13 go1.11.4
fuse-xfstests gocryptfs-2018-08-18/d8111119
Sun Jan 13 10:03:45 UTC 2019

FSTYP         -- fuse.gocryptfs
PLATFORM      -- Linux/x86_64 brikett 4.19.12-301.fc29.x86_64
MKFS_OPTIONS  -- /var/tmp/check-gocryptfs/scratchdev
MOUNT_OPTIONS -- -o context=system_u:object_r:root_t:s0 /var/tmp/check-gocryptfs/scratchdev /var/tmp/check-gocryptfs/scratchdir