linux - linux

	Commit message (Collapse)	Author	Age	Files	Lines
*	tools: Fix pthread flag for Makefile of trace-agent used by virtio-trace	Yoshihiro YUNOMAE	2012-09-28	1	-4/+3
\| \| \| \| \| \| \| \| \|	pthread flag should not be -lpthread but -pthread using gcc. The -lpthread links the external multithread library. On the other hand, the -pthread manages both the gcc's preprocessor and linker to be able to compile with pthread. Signed-off-by: Yoshihiro YUNOMAE <yoshihiro.yunomae.ez@hitachi.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
*	tools: Add guest trace agent as a user tool	Yoshihiro YUNOMAE	2012-09-28	6	-0/+806
\| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \|	This patch adds a user tool, "trace agent" for sending trace data of a guest to a Host in low overhead. This agent has the following functions: - splice a page of ring-buffer to read_pipe without memory copying - splice the page from write_pipe to virtio-console without memory copying - write trace data to stdout by using -o option - controlled by start/stop orders from a Host Changes in v2: - Cleanup (change fprintf() to pr_err() and an include guard) Signed-off-by: Yoshihiro YUNOMAE <yoshihiro.yunomae.ez@hitachi.com> Acked-by: Amit Shah <amit.shah@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
*	virtio/tools: add delayed interupt mode	Michael S. Tsirkin	2012-05-02	2	-4/+23
\| \| \| \|	Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
*	tools/virtio: stub out strong barriers	Michael S. Tsirkin	2012-02-28	1	-0/+3
\| \| \| \| \| \|	The tool should never use them, abort if it does. Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
*	tools/virtio: add linux/hrtimer.h stub	Michael S. Tsirkin	2012-02-28	1	-0/+0
\| \| \| \| \| \|	Make tool build after virtio changes broke it. Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
*	tools/virtio: add linux/module.h stub	Michael S. Tsirkin	2012-02-28	1	-0/+0
\| \| \| \| \| \|	Make the tool build again after virtio changes broke it. Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
*	virtio: rename virtqueue_add_buf_gfp to virtqueue_add_buf	Rusty Russell	2012-01-12	2	-16/+8
\| \| \| \| \| \| \| \| \|	Remove wrapper functions. This makes the allocation type explicit in all callers; I used GPF_KERNEL where it seemed obvious, left it at GFP_ATOMIC otherwise. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Reviewed-by: Christoph Hellwig <hch@lst.de>
*	virtio: harsher barriers for rpmsg.	Rusty Russell	2012-01-12	2	-1/+3
\| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \|	We were cheating with our barriers; using the smp ones rather than the real device ones. That was fine, until rpmsg came along, which is used to talk to a real device (a non-SMP CPU). Unfortunately, just putting back the real barriers (reverting d57ed95d) causes a performance regression on virtio-pci. In particular, Amos reports netbench's TCP_RR over virtio_net CPU utilization increased up to 35% while throughput went down by up to 14%. By comparison, this branch is in the noise. Reference: https://lkml.org/lkml/2011/12/11/22 Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
*	virtio_test: support event index	Michael S. Tsirkin	2011-05-30	1	-2/+17
\| \| \| \| \| \| \|	Add ability to test the new event idx feature, enable by default. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
*	tools/virtio: virtio_test tool	Michael S. Tsirkin	2010-12-09	5	-0/+487
\| \| \| \| \| \| \| \| \| \| \|	This is the userspace part of the tool: it includes a bunch of stubs for linux APIs, somewhat simular to linuxsched. This makes it possible to recompile the ring code in userspace. A small test example is implemented combining this with vhost_test module. Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
*	vhost test module	Michael S. Tsirkin	2010-12-09	2	-0/+3
	This adds a test module for vhost infrastructure. Intentionally not tied to kbuild to prevent people from installing and loading it accidentally. Signed-off-by: Michael S. Tsirkin <mst@redhat.com>