I cannot recreate this on b101. There is no significant difference between the two on my system. -- richard
William Bauer wrote: > For clarity, here's how you can reproduce what I'm asking about: > > This is for local file systems on build 86 and not about NFS or > any remote mounts. You can repeat these 100 times and always get > the same result, whether you reboot between trials or leave the > system running. > > 1. Log into the console of your OpenSolaris system. > > 2. Open a terminal in your home directory. > > 3. Create a file as in the command below and note the write > speed it returns. I know this method is not a true test of write > performance, but I'm interested in relative and not absolute numbers. > This method seems quite consistent in the results it returns. > > dd if=/dev/zero of=outfile bs=1024 count=1000000 > > 4. Enter a subdirectory of your home and do the same as above. > > 5. Log out of the console and perform the same tests via a remote > login using SSH or your favorite method. See that now there is no > difference in performance. > > I've found the difference between steps 3 and 4 to be typically 25%. > This happens even with the most vanilla new install. On VirtualBox, > the differences can be more like 5x (i.e. 500%!). > > Note that if you do step 5 when still logged into the console, > you get the same results as in step 3-4. > > That's it. Maybe not hugely important, but I'm trying to understand > why this happens. > -- > This message posted from opensolaris.org > _______________________________________________ > zfs-discuss mailing list > zfs-discuss@opensolaris.org > http://mail.opensolaris.org/mailman/listinfo/zfs-discuss > _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
