Hi Jones,
many thanks again four your help and your time.
Thanks for the patch too - I'll check it up.
On my Ubuntu, there is a Samba 4.1.6. I'll install the samba
source package, and will try to apply the patch, then - I hope -
the package will be compiled as well.
I'll notify to you about the result. (First, I need to upgrade
that server.)
Thanks again,
Ervin
On Thu, Apr 23, 2015 at 06:05:42PM +0800, Jones Syue
wrote:> Hello Ervin,
>
> The in-memory cache lookup could be added back into
> samba-4.1.6 by applying the attached patch,
> if it could be compiled with Louis how-to steps,
> perhaps got the chance to make U14.04 be stayed on samba-4.
>
> Here is my test,
> the test-bench is uploading 5000 files and each one is 1MB.
> The attached patch could improve 15% at case B).
>
> Case A) Original samba-4.1.6
> will go through gete{uid, gid},
> and takes 100 seconds to finish the uploading.
>
> Case B) Original samba-4.1.6 with patch
> will not go through gete{uid, gid},
> and takes 85 seconds to finish the uploading.
>
> [A]
> % time seconds usecs/call calls errors syscall
> ------ ----------- ----------- --------- --------- ----------------
> 48.67 0.325333 2 165093 poll
> 24.18 0.161620 0 681677 read
> 7.58 0.050682 0 596650 write
> 4.43 0.029612 0 3753979 fcntl64
> 2.12 0.014164 0 165067 writev
> 2.00 0.013335 0 330139 readv
> 1.11 0.007445 0 1615613 geteuid32
> 1.09 0.007303 0 1615588 getegid32
> 1.03 0.006913 0 175074 open
> 0.83 0.005579 0 85025 fchmod
> 0.79 0.005256 0 520322 gettimeofday
> 0.74 0.004979 0 175924 close
> 0.63 0.004191 0 680256 setresuid32
> 0.60 0.004014 0 680256 setresgid32
> 0.52 0.003494 0 510193 setgroups32
> 0.51 0.003440 0 256181 145062 getxattr
> 0.46 0.003105 0 170051 170050 lstat64
> 0.45 0.003002 0 210137 10 stat64
> 0.33 0.002217 0 170052 munmap
> 0.30 0.002021 0 340100 alarm
> 0.30 0.002002 0 425125 getgroups32
> 0.28 0.001896 0 250052 _llseek
> 0.28 0.001849 0 170052 mmap2
> 0.25 0.001682 0 340100 rt_sigaction
> 0.18 0.001208 0 200097 fstat64
> 0.13 0.000878 0 25001 setxattr
> 0.09 0.000602 0 15000 SYS_320
> 0.03 0.000227 0 30000 20000 flock
> 0.03 0.000194 0 5000 ftruncate64
> 0.01 0.000067 0 6110 fstatat64
> 0.01 0.000050 0 850 850 connect
> 0.00 0.000032 0 850 socket
> 0.00 0.000022 0 5025 clock_gettime
> 0.00 0.000005 0 16 umask
> 0.00 0.000000 0 1 restart_syscall
> 0.00 0.000000 0 7 chdir
> 0.00 0.000000 0 1 time
> 0.00 0.000000 0 10 lseek
> 0.00 0.000000 0 3 brk
> 0.00 0.000000 0 1 ioctl
> 0.00 0.000000 0 8 dup2
> 0.00 0.000000 0 3 getcwd
> 0.00 0.000000 0 58 getdents64
> 0.00 0.000000 0 1 statfs64
> ------ ----------- ----------- --------- --------- ----------------
> 100.00 0.668419 14370748 335972 total
>
> [B]
> % time seconds usecs/call calls errors syscall
> ------ ----------- ----------- --------- --------- ----------------
> 43.37 0.179108 1 165094 poll
> 30.78 0.127108 0 583223 read
> 12.26 0.050613 0 583220 write
> 3.16 0.013041 0 1567707 fcntl64
> 2.93 0.012118 0 165054 writev
> 2.47 0.010192 0 330138 readv
> 1.36 0.005609 1 5019 close
> 1.11 0.004604 0 520270 gettimeofday
> 0.67 0.002775 0 256181 145062 getxattr
> 0.53 0.002182 0 210091 3 stat64
> 0.42 0.001715 0 5019 open
> 0.30 0.001255 0 80004 _llseek
> 0.15 0.000600 0 25001 setxattr
> 0.14 0.000575 0 27275 brk
> 0.13 0.000521 0 15000 SYS_320
> 0.07 0.000284 0 5018 ftruncate64
> 0.05 0.000190 0 30048 fstat64
> 0.04 0.000161 0 30000 20000 flock
> 0.03 0.000108 3 40 munmap
> 0.02 0.000100 2 58 getdents64
> 0.02 0.000064 0 6110 fstatat64
> 0.01 0.000033 0 5005 clock_gettime
> 0.00 0.000010 0 327 pwrite64
> 0.00 0.000006 0 35 setresgid32
> 0.00 0.000000 0 1 restart_syscall
> 0.00 0.000000 0 5 chdir
> 0.00 0.000000 0 1 time
> 0.00 0.000000 0 10 lseek
> 0.00 0.000000 0 4 alarm
> 0.00 0.000000 0 1 ioctl
> 0.00 0.000000 0 2 umask
> 0.00 0.000000 0 1 dup2
> 0.00 0.000000 0 1 fchmod
> 0.00 0.000000 0 4 rt_sigaction
> 0.00 0.000000 0 3 getcwd
> 0.00 0.000000 0 40 mmap2
> 0.00 0.000000 0 3 2 lstat64
> 0.00 0.000000 0 80 geteuid32
> 0.00 0.000000 0 74 getegid32
> 0.00 0.000000 0 5 getgroups32
> 0.00 0.000000 0 25 setgroups32
> 0.00 0.000000 0 35 setresuid32
> 0.00 0.000000 0 1 statfs64
> ------ ----------- ----------- --------- --------- ----------------
> 100.00 0.412972 4615233 165067 total
>
> --
> Regards,
> Jones Syue | ???
> QNAP Systems, Inc.