At 11:28 26/10/2007, you wrote: >I didn't see anyone answer this. We noticed a tremendous slowdown of >our samba server the minute we put our first Vista client on it due to >IO. Turns out that by default, Vista has an indexing feature turned on >that sits there and loops continually indexing every file it can find. >So if you have mapped drives, and they have a lot of content...this user >had about 2gb in their home directory, it just murdered our samba >server. I'm no vista expert, but why you don't see a noticeable >performance hit when it indexes the local drive of the pc, I have no >idea, but when it was sitting on that mapped drive, it slowed the samba >server down for everyone. We turned that feature off on the Vista >machine, and the problem went away.
Could you please tell me how to turne that feature off on Vista? Thank you Roberto >On Thu, 2007-10-18 at 09:57 -0500, [EMAIL PROTECTED] wrote: >> Issue: Vista reads slowly from a samba server. This appears to pop up >> periodically here and elsewhere. >> >> My samba.conf file has: >> >> [homes] >> ... >> vfs objects = readahead >> >> As suggested elsewhere. >> >> Writes are approximately 17-18MB/s which is acceptable. Reads are in >> the 8MB/s range which is appalingly slow. Using linux smbclient and >> windows XP clients I can read at 25+MB/s. I've enabled vfs objects = >> readahead to get better performance in vista. >> >> The biggest difference I notice between vista and other clients is that >> the %iowait is MUCH higher than with the other clients. Logs show the >> readahead module being loaded but I have no idea if it is actually doing >> anything. >> >> [2007/10/18 08:24:48, 2] lib/module.c:do_smb_load_module(64) >> Module '/usr/lib/samba/vfs/readahead.so' loaded >> >> >> Server Config: >> >> CPU: Amd Athlon 2600+ >> Ram: 1G >> Disk: software raid5 across 5 250G ide drives each on dedicated channels >> Kernel: Linux shakti 2.6.22 #1 SMP Wed Oct 17 15:32:01 CDT 2007 i686 >> GNU/Linux >> Distro: debian etch >> >> Network: Gigabit (though cheapo) >> >> Any suggestions on where to go from here? >> >> iostat 5 output for the physical devices below: >> >> Using a new quad core running Vista client on gigabit >> - Reads at 8MB/s >> >> avg-cpu: %user %nice %system %iowait %steal %idle >> 2.81 0.00 9.62 73.95 0.00 13.63 >> >> Device: tps Blk_read/s Blk_wrtn/s Blk_read Blk_wrtn >> hda 51.10 3033.27 20.84 15136 104 >> hde 53.91 3028.46 16.03 15112 80 >> hdg 49.90 2993.19 19.24 14936 96 >> hdi 47.49 3036.47 6.41 15152 32 >> hdk 49.30 2993.19 14.43 14936 72 >> >> >> Using a midrange Laptop running Windows XP on gigabit >> - Reads at 20MB/s >> >> avg-cpu: %user %nice %system %iowait %steal %idle >> 3.80 0.00 23.80 14.20 0.00 58.20 >> >> Device: tps Blk_read/s Blk_wrtn/s Blk_read Blk_wrtn >> hda 199.80 8366.40 25.60 41832 128 >> hde 187.20 8380.80 8.00 41904 40 >> hdg 190.80 8377.60 9.60 41888 48 >> hdi 178.20 8376.00 16.00 41880 80 >> hdk 188.80 8377.60 20.80 41888 104 >> >> >> Using same host, smbclient, writing to a firewire drive >> - Reads at 26MB/s >> >> avg-cpu: %user %nice %system %iowait %steal %idle >> 7.58 0.00 38.92 30.74 0.00 22.75 >> >> Device: tps Blk_read/s Blk_wrtn/s Blk_read Blk_wrtn >> hda 224.75 8693.01 20.76 43552 104 >> hde 214.37 8713.77 12.77 43656 64 >> hdg 212.97 8657.88 19.16 43376 96 >> hdi 195.61 8629.14 23.95 43232 120 >> hdk 197.01 8688.22 22.36 43528 112 >> >> Using dd to firewire drive >> - Reads at 27MB/s >> >> avg-cpu: %user %nice %system %iowait %steal %idle >> 6.40 0.00 59.40 34.20 0.00 0.00 >> >> Device: tps Blk_read/s Blk_wrtn/s Blk_read Blk_wrtn >> hda 310.80 12844.80 17.60 64224 88 >> hde 317.80 12820.80 9.60 64104 48 >> hdg 308.60 12779.20 14.40 63896 72 >> hdi 294.00 12779.20 9.60 63896 48 >> hdk 294.80 12796.80 19.20 63984 96 >> > >-- >To unsubscribe from this list go to the following URL and read the >instructions: https://lists.samba.org/mailman/listinfo/samba -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/listinfo/samba
