Well, I've tried the latest OpenSolaris snv_76 release, and it displays the same symptoms. (so b66-0624-xen, 75a and 76 all have the same problem)
But, the good news is that is behaves well if there is only 2Gb of memory in the system. So, in summary The command time dd if=/dev/zero of=myfile.dat bs=16k count=150000 ...takes around 30 seconds if running on "bare metal" (ie when the Grub menu does *not* select xVM/Xen ... ie when not running under Dom0) ...takes around 30 seconds in Dom0 when the Grub boot selected Xen (but only if 2Gb memory) ...takes "forever", with the IO rate dropping from an initial 70Mb/s to around 1M/s, if booted under Xen, and executed within Dom0, and there is either 4Gb (2 DIMMs, single channel), 4Gb (2 Dimmon, dual channel), or 8Gb (dual channel). Anyone else using an IP35 based board and >2Gb memory? Anyone using 8Gb memory with Xen on a "retail" based motherboard? This message posted from opensolaris.org _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
