LGTM On Mon, Jul 31, 2017 at 4:30 PM, Barret Rhoden <[email protected]> wrote:
> Hi - > > Our VMM was doing a lot of unnecessary mmaps and munmaps. The latter > trigger TLB shootdowns. This patchset cuts out most of the mmap/munmaps > associated with task thread creation (every guest core timer tick) and > eventfd_write (virtio-mmio kicks). > > As a side note, we don't need to use eventfds in virtio - we should use > uthread sync directly and avoid the kernel. > > Barret > > > The following changes since commit 9db45c3e6abf403a0bfe10ead3950d > 086e15c827: > > Fix matrix bug in gethostbyname (XCC) (2017-07-30 12:45:09 -0700) > > are available in the git repository at: > > [email protected]:brho/akaros.git vmm > > for you to fetch changes up to 35cc026dc354164086324e24a5502aa27c6feacf: > > eventfd: Use write_hex_to_fd() (XCC) (2017-07-31 16:23:25 -0400) > > ---------------------------------------------------------------- > View this online at: > https://github.com/brho/akaros/compare/9db45c3e6abf...35cc026dc354 > > ---------------------------------------------------------------- > Barret Rhoden (5): > x86: Don't enter the monitor for invalid opcode > parlib: slab: Use the modern ctor/dtor interface > parlib: slab: mmap with PROT_EXEC > vmm: Use a task_thread cache > eventfd: Use write_hex_to_fd() (XCC) > > kern/arch/x86/trap.c | 5 --- > .../glibc-2.19-akaros/sysdeps/akaros/eventfd.c | 9 +--- > user/iplib/epoll.c | 7 ++-- > user/parlib/dtls.c | 4 +- > user/parlib/include/parlib/slab.h | 10 +++-- > user/parlib/slab.c | 48 > ++++++++++++++-------- > user/vmm/sched.c | 48 > +++++++++++++++++----- > 7 files changed, 81 insertions(+), 50 deletions(-) > > -- > You received this message because you are subscribed to the Google Groups > "Akaros" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "Akaros" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. For more options, visit https://groups.google.com/d/optout.
