I'm not sure what you would expect VM to be able to do here. All OSes pretty much suspend operations while this kind of "what can I do without" decision-making is going on inside the kernel. If the Linux kernel is taking it's time sorting out what pages are clean/dirty/pageable, the only thing VM can possibly do is execute the page write/read as quickly as possible *once the decision is made*, and it's demonstratably doing just that.
If backleveling the kernel makes the problem go away, then it's clearly a kernel logic problem in the s390x port. > -----Original Message----- > From: Linux on 390 Port [mailto:LINUX-390@VM.MARIST.EDU] On Behalf Of > Veencamp, Jonathon D. >Which is a shame, ZVM VDISK should > give us more flexibility than it seems to. ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For more information on Linux on System z, visit http://wiki.linuxvm.org/
