Using Samba 1.9.18p10 I have found a difference between Win95 and WinNT: opening 'Lotus Freelance' files from Win95 is really slow (about 17 kB/s only) vs fast (~hundreds of kB/s) from WinNT. Looking into the log (with debug level=4) I see using Win95: switch message SMBopenX (pid 33994) Skipping become_user - already user unix_clean_name [./PRIVATE/Goyal_Sep98.PRZ] Got dir cache hit on . PRIVATE -> Private unix_clean_name [Private/Goyal_Sep98.PRZ] calling open_file with flags=0x2 flags2=0x0 mode=0664 Allocated new file_fd_struct 0, dev = ffffffff, inode = ffffffff 1998/10/08 13:50:32 axs opened file Private/Goyal_Sep98.PRZ read=Yes write=Yes (numopen=1 fnum=26) set_share_mode: Created share record for Private/Goyal_Sep98.PRZ (dev 1 inode 33106898) set_share_mode: Created share entry for Private/Goyal_Sep98.PRZ with mode 0x22 pid=33994 1998/10/08 13:50:32 Transaction 18 of length 94 switch message SMBopenX (pid 33994) Skipping become_user - already user unix_clean_name [./PRIVATE/Goyal_Sep98.PRZ] Got dir cache hit on . PRIVATE -> Private unix_clean_name [Private/Goyal_Sep98.PRZ] 1998/10/08 13:50:32 oplock_break: called for dev = 1, inode = 1f92bd2. Current global_oplocks_open = 1 chdir to /var/zurich/etc/samba 1998/10/08 13:50:32 Transaction 18 of length 55 switch message SMBlockingX (pid 33994) chdir to /u/axs Skipping become_user - already user chdir to /afs/zurich.ibm.com/u/axs 1998/10/08 13:50:32 oplock_break: returning success for fnum = 26, dev = 1, inode = 1f92bd2. Current global_oplocks_open = 0 Share violation on file (2,2,2,33994,Private/Goyal_Sep98.PRZ,fcbopen = 0, flags = 0) = 0 1998/10/08 13:50:32 error packet at line 1391 cmd=45 (SMBopenX) eclass=1 ecode=32 error string = Permission denied 1998/10/08 13:50:33 Transaction 20 of length 55 switch message SMBreadbraw (pid 33994) Skipping become_user - already user chdir to /u/axs 1998/10/08 13:50:33 readbraw fnum=26 cnum=75 start=4825088 max=4096 min=0 nread=4096 transfer_file 0 (head=4100) called 1998/10/08 13:50:33 Transaction 21 of length 55 switch message SMBreadbraw (pid 33994) Skipping become_user - already user 1998/10/08 13:50:33 readbraw fnum=26 cnum=75 start=4829184 max=4096 min=0 nread=4096 transfer_file 0 (head=4100) called 1998/10/08 13:50:33 Transaction 22 of length 55 switch message SMBreadbraw (pid 33994) Skipping become_user - already user 1998/10/08 13:50:33 readbraw fnum=26 cnum=75 start=4833280 max=4096 min=0 nread=4096 transfer_file 0 (head=4100) called 1998/10/08 13:50:34 Transaction 23 of length 55 switch message SMBreadbraw (pid 33994) Skipping become_user - already user ... so it is using 'readbraw' to get the file to the client. Using WinNT it looks like: switch message SMBopenX (pid 32280) Skipping become_user - already user unix_clean_name [./axs/Private/Goyal_Sep98.PRZ] unix_clean_name [axs/Private/Goyal_Sep98.PRZ] calling open_file with flags=0x2 flags2=0x0 mode=0664 Allocated new file_fd_struct 0, dev = ffffffff, inode = ffffffff 1998/10/08 14:41:00 mir opened file axs/Private/Goyal_Sep98.PRZ read=Yes write=Yes (numopen=1 fnum=91) set_share_mode: Created share record for axs/Private/Goyal_Sep98.PRZ (dev 1 inode 33106898) set_share_mode: Created share entry for axs/Private/Goyal_Sep98.PRZ with mode 0x22 pid=32280 1998/10/08 14:41:00 Transaction 1542 of length 64 switch message SMBreadX (pid 32280) Skipping become_user - already user 1998/10/08 14:41:00 readX fnum=91 cnum=119 min=4096 max=4096 nread=4096 1998/10/08 14:41:01 Transaction 1543 of length 64 switch message SMBreadX (pid 32280) Skipping become_user - already user 1998/10/08 14:41:01 readX fnum=91 cnum=119 min=4096 max=4096 nread=4096 1998/10/08 14:41:01 Transaction 1544 of length 64 switch message SMBreadX (pid 32280) Skipping become_user - already user 1998/10/08 14:41:01 readX fnum=91 cnum=119 min=32768 max=32768 nread=32768 1998/10/08 14:41:01 Transaction 1545 of length 64 switch message SMBreadX (pid 32280) Skipping become_user - already user 1998/10/08 14:41:01 readX fnum=91 cnum=119 min=4096 max=4096 nread=4096 1998/10/08 14:41:01 Transaction 1546 of length 64 switch message SMBreadX (pid 32280) Skipping become_user - already user 1998/10/08 14:41:01 readX fnum=91 cnum=119 min=4096 max=4096 nread=4096 1998/10/08 14:41:01 Transaction 1547 of length 64 ... so it is using 'readX' for the file transfer. In both cases the client opens the file into 'Lotus Freelance 97'. Why is it using 'readbraw' vs. 'readX'? Any help appreciated! Axel _______________________________________________________________ Axel Tanner IBM Zurich Research Laboratory email: axs@zurich.ibm.com Saumerstr. 4 phone: +41/1/724 82 49 CH-8803 Rueschlikon fax : +41/1/724 89 59 Switzerland http://www.zurich.ibm.com/~axs _______________________________________________________________