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qed: Table, L2 cache, and cluster functions
This patch adds code to look up data cluster offsets in the image viathe L1/L2 tables. The L2 tables are writethrough cached in memory forperformance (each read/write requires a lookup so it is essential tocache the tables)....
qed: Read/write support
This patch implements the read/write state machine. Operations arefully asynchronous and multiple operations may be active at any time.
Allocating writes lock tables to ensure metadata updates do notinterfere with each other. If two allocating writes need to update the...
trace: Trace vm_start()/vm_stop()
VM state change notifications are invoked from vm_start()/vm_stop().Trace these state changes so we can reason about the state of the VMfrom trace output.
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
sparc32: convert debug printf statements to tracepoints
Replace debug printf statements with tracepoints.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
apic: convert debug printf statements to tracepoints
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
trace: Trace bdrv_aio_{readv,writev}
Observing block layer aio readv/writev operations is useful fordebugging image formats or understanding guest disk I/O patterns.
trace: Use portable format strings
It is not portable to use "%ld" for int64_t because int64_t may havetype long on 64-bit platforms and long long on 32-bit platforms. Usethe standard library PRId64 macros to keep format strings portable.
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>...
trace: fix a typo
There is no qemu_valloc() but qemu_vmalloc().
trace: Trace qemu_malloc() and qemu_vmalloc()
It is often useful to instrument memory management functions in order tofind leaks or performance problems. This patch adds trace events forthe memory allocation primitives.
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
trace: Trace virtio-blk, multiwrite, and paio_submit
This patch adds trace events that make it possible to observevirtio-blk.
trace: Trace virtqueue operations
This patch adds trace events for virtqueue operations includingadding/removing buffers, notifying the guest, and receiving a notifyfrom the guest.
trace: Trace port IO
Signed-off-by: Prerna Saxena
trace: Trace entry point of balloon request handler
trace: Add trace-events file for declaring trace events
This patch introduces the trace-events file where trace events can bedeclared like so:
qemu_malloc(size_t size) "size %zu" qemu_free(void *ptr) "ptr %p"
These trace event declarations are processed by a new tool called...
trace: Support disabled events in trace-events
Sometimes it is useful to disable a trace event. Removing the eventfrom trace-events is not enough since source code will call thetrace_*() function for the event.
This patch makes it easy to build without specific trace events by...