Recently I had the chance to look at smb service response times over OpenVPN
using Wireshark/TShark. Here are 2 samples. In both samples a Win XP Pro
machine is connecting to a server running samba-3.3.7 and openvpn-2.0.6_9 on
FreeBSD 7.2-STABLE.
Location #1
==================================================================SMB RTT
Statistics:
Filter:
Commands Calls Min RTT Max RTT Avg RTT
Close 671 0.12442 0.90853 0.14041
Write 1 0.12672 0.12672 0.12672
Trans 11 0.12736 0.15758 0.13410
Echo 2 0.13164 0.14794 0.13979
Read AndX 639 0.12772 1.62475 0.21154
Write AndX 50 0.12668 0.42363 0.32786
Tree Disconnect 5 0.12736 0.13018 0.12872
Negotiate Protocol 1 0.20911 0.20911 0.20911
Session Setup AndX 4 0.13362 0.15055 0.14006
Logoff AndX 1 0.13913 0.13913 0.13913
Tree Connect AndX 6 0.12751 0.15108 0.13548
NT Create AndX 1264 0.12484 0.93606 0.14180
Transaction2 Commands Calls Min RTT Max RTT Avg RTT
FIND_FIRST2 204 0.12546 0.54965 0.14905
QUERY_FS_INFO 93 0.12489 0.20448 0.13657
QUERY_PATH_INFO 425 0.12507 0.36258 0.13878
QUERY_FILE_INFO 2371 0.12427 0.88422 0.13971
SET_FILE_INFO 5 0.12780 0.13102 0.12943
GET_DFS_REFERRAL 1 0.12902 0.12902 0.12902
NT Transaction Commands Calls Min RTT Max RTT Avg RTT
NT IOCTL 15 0.12761 0.21489 0.14543
NT NOTIFY 37 0.12815 216.02239 45.20094
==================================================================
Location #2
==================================================================SMB RTT
Statistics:
Filter:
Commands Calls Min RTT Max RTT Avg RTT
Close 267 0.10138 0.25759 0.11419
Write 1 0.18576 0.18576 0.18576
Trans 39 0.10364 0.13338 0.10934
Read AndX 52 0.10316 0.46886 0.14167
Write AndX 38 0.10320 0.15958 0.11123
Tree Disconnect 2 0.11125 0.17551 0.14338
Negotiate Protocol 1 0.16983 0.16983 0.16983
Session Setup AndX 6 0.10781 0.13151 0.11503
Logoff AndX 2 0.11084 0.15838 0.13461
Tree Connect AndX 4 0.10317 0.10774 0.10504
NT Create AndX 480 0.10225 0.45594 0.11610
Transaction2 Commands Calls Min RTT Max RTT Avg RTT
FIND_FIRST2 100 0.10318 0.31548 0.12387
FIND_NEXT2 1 0.10900 0.10900 0.10900
QUERY_FS_INFO 34 0.10250 0.22591 0.11410
QUERY_PATH_INFO 186 0.10254 0.22819 0.11802
QUERY_FILE_INFO 860 0.10218 0.34045 0.11584
SET_FILE_INFO 1 0.10705 0.10705 0.10705
GET_DFS_REFERRAL 2 0.10620 0.12638 0.11629
NT Transaction Commands Calls Min RTT Max RTT Avg RTT
NT IOCTL 8 0.10298 0.16256 0.11840
NT NOTIFY 9 0.15908 103.57645 34.19014
==================================================================
Comments welcome...
--
Janos Dohanics
