From: Hans de Goede <hdegoede@redhat.com>
To: Gerd Hoffmann <kraxel@redhat.com>
Cc: qemu-devel@nongnu.org
Subject: [Qemu-devel] usb: Move interrupt handling from poll to async handling
Date: Tue, 6 Nov 2012 15:08:13 +0100 [thread overview]
Message-ID: <1352210901-1923-1-git-send-email-hdegoede@redhat.com> (raw)
This patchsets move interrupt handling for usb-redir and usb-hid devices
over from polling to async handling. Together with a patch to allow
async stepdown in ehci when the periodic schedule only contains interrupt
queues, and a patch to allow usb-hid devices to connect to ehci, this
fixes the usb-tablet causing a crazy cpu load for idle guests.
With this patchset the cpuload for a fully idle vm with usb-tablet
is lowered from 20% to 2-3% (on my laptop).
Regards,
Hans
next reply other threads:[~2012-11-06 14:07 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-06 14:08 Hans de Goede [this message]
2012-11-06 14:08 ` [Qemu-devel] [PATCH 1/8] usb-redir: Split usb_handle_interrupt_data into separate in/out functions Hans de Goede
2012-11-06 14:08 ` [Qemu-devel] [PATCH 2/8] usb-redir: Store interrupt receiving status in the bufp-queue Hans de Goede
2012-11-07 9:51 ` Paolo Bonzini
2012-11-06 14:08 ` [Qemu-devel] [PATCH 3/8] usb-redir: Only add actually in flight packets to the in flight queue Hans de Goede
2012-11-06 14:08 ` [Qemu-devel] [PATCH 4/8] usb-redir: Handle interrupt packets async Hans de Goede
2012-11-06 14:08 ` [Qemu-devel] [PATCH 5/8] ehci: Lower timer freq when there are no iso packets in the periodic schedule Hans de Goede
2012-11-06 14:08 ` [Qemu-devel] [PATCH 6/8] hid: Change idle handling to use a timer Hans de Goede
2012-11-06 14:08 ` [Qemu-devel] [PATCH 7/8] usb-hid: Move from NAK/polling to async packet handling Hans de Goede
2012-11-08 15:35 ` Gerd Hoffmann
2012-11-06 14:08 ` [Qemu-devel] [PATCH 8/8] usb-hid: Allow connecting to a USB-2 device Hans de Goede
2012-11-07 9:47 ` Paolo Bonzini
2012-11-08 15:36 ` Gerd Hoffmann
2012-11-12 11:19 ` Hans de Goede
2012-11-06 22:05 ` [Qemu-devel] usb: Move interrupt handling from poll to async handling Gerd Hoffmann
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