similar to: [PATCH v3 0/11] tests/qemu: Add program for tracing and analyzing boot times.

v4: - Lots more analysis of the /init script and other parts. - Display a list of the longest to shortest activities. - Rebase on top of current head. Rich.

v1 was here: https://www.redhat.com/archives/libguestfs/2016-March/thread.html#00157 Not running the 'hwclock' command reduces boot times considerably. However I'm not sure if it is safe. See the question I posted on qemu-devel: http://thread.gmane.org/gmane.comp.emulators.qemu/402194 At the moment, about 50% of the time is consumed by SeaBIOS. Of this, about ⅓rd is SGABIOS

--- .gitignore | 1 + tests/qemu/Makefile.am | 22 +- tests/qemu/boot-analysis.c | 1098 ++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 1118 insertions(+), 3 deletions(-) create mode 100644 tests/qemu/boot-analysis.c diff --git a/.gitignore b/.gitignore index 1493011..9306a19 100644 --- a/.gitignore +++ b/.gitignore @@ -510,6 +510,7 @@ Makefile.in

Hi, another issue I''m seeing with 3.0-rc2 and Xen is that there is an unexpectedly high amount of kernel reserved memory. I suspect that Linux allocates page table entries and corresponding data structures for the whole 6GB areas of the provided ''physical RAM map'' even though it has rather big unusable holes in it. [ 0.000000] BIOS-provided physical RAM map: [

At the most recent Xen Summit, Thomas Friebel presented a paper ("Preventing Guests from Spinning Around", http://xen.org/files/xensummitboston08/LHP.pdf) investigating the interactions between spinlocks and virtual machines. Specifically, he looked at what happens when a lock-holding VCPU gets involuntarily preempted. The obvious first order effect is that while the VCPU is not

At the most recent Xen Summit, Thomas Friebel presented a paper ("Preventing Guests from Spinning Around", http://xen.org/files/xensummitboston08/LHP.pdf) investigating the interactions between spinlocks and virtual machines. Specifically, he looked at what happens when a lock-holding VCPU gets involuntarily preempted. The obvious first order effect is that while the VCPU is not

At the most recent Xen Summit, Thomas Friebel presented a paper ("Preventing Guests from Spinning Around", http://xen.org/files/xensummitboston08/LHP.pdf) investigating the interactions between spinlocks and virtual machines. Specifically, he looked at what happens when a lock-holding VCPU gets involuntarily preempted. The obvious first order effect is that while the VCPU is not

Hi all: I am trying to get the return value of a call instruction that I inserted during the optimization pass I wrote. I have something like the following: CallInst *InitCall = CallInst::Create(InitFn, Args.begin(), Args.end(), "log_load_addr_ret", LI); CastInst *InsertedCast =

Hi! We have a problem that the dom0 very often does not boot and hangs in the hypervisor - see screenshot. The last message is: (XEN) Dom0 has maximum 16 VCPUs (afterwards xen should overwrite the memory) We are using the xen kernel from kernel.org git. Kernel is 2.6.32.24-xen with Xen 4.0.1 Hardware is HP DL380. Is this a known problem? Any hints what could be the problem and how we can

Hi! We have a problem that the dom0 very often does not boot and hangs in the hypervisor - see screenshot. The last message is: (XEN) Dom0 has maximum 16 VCPUs (afterwards xen should overwrite the memory) We are using the xen kernel from kernel.org git. Kernel is 2.6.32.24-xen with Xen 4.0.1 Hardware is HP DL380. Is this a known problem? Any hints what could be the problem and how we can

Using the quiet option (when not in verbose mode) improves boot speeds by rather a lot, by avoiding sending messages over the slow emulated UART. Rich.

When I''m executing cucumber tests, I noticed that sometimes rails app (in test env.) getting several the same requests (GET or POST) usually around 3, and it doesn''t render anything with empty HTTP status code. Have anyone met something similar to that issue? here is some example of log file: Started POST "/account" for 127.0.0.1 at 2010-11-30 22:34:17 +0200

This is a follow-up of commit cfd8983f03c7b2 ("x86, locking/spinlocks: Remove ticket (spin)lock implementation"). The static_key structure paravirt_ticketlocks_enabled is now removed as it is no longer used. As a result, the init functions kvm_spinlock_init_jump() and xen_init_spinlocks_jump() are also removed. A simple build and boot test was done to verify it. Signed-off-by: Waiman

This is a follow-up of commit cfd8983f03c7b2 ("x86, locking/spinlocks: Remove ticket (spin)lock implementation"). The static_key structure paravirt_ticketlocks_enabled is now removed as it is no longer used. As a result, the init functions kvm_spinlock_init_jump() and xen_init_spinlocks_jump() are also removed. A simple build and boot test was done to verify it. Signed-off-by: Waiman

We have implemented hugepage support for guests in following manner In our implementation we added a parameter hugepage_num which is specified in the config file of the DomU. It is the number of hugepages that the guest is guaranteed to receive whenever the kernel asks for hugepage by using its boot time parameter or reserving after booting (eg. Using echo XX > /proc/sys/vm/nr_hugepages).

hi there. i'm developing a kind of collaborative phone system in which groups of users need to navigate phone menus together, and run into problems with the '#' character. here's a scenario: 1) person_a dials into my asterisk server. 2) asterisk parks the call, and initiates an outgoing call to person_b 3) after verifying person_b (by requiring a keypress), asterisk bridges

libguestfs has used double and triple underscores in identifiers. These aren't valid for global names in C++. (http://stackoverflow.com/a/228797) These large but completely mechanical patches change the illegal identifiers to legal ones. Rich.

Package: xen-hypervisor-4.0-amd64 Version: 4.0.1-1 Severity: normal My 32Bit Dom0-crashes with error "Out of SW-IOMMU space for 65536 bytes" after doing moderate I/O on the local storage, which is a software-raid1 over 3 harddrives, connected to the builtin Perc H200 controller with ext3-fs. The error is reproduceable with "dd if=/dev/zero of=bigfile bs=1024 count=1000000"

I am assuming this an appropriate place to discuss this, but if it isn''t my apologies- just let me know. Just a Rails 4-ish thing. Am attempting to pull AMS (active_model_serializers), strong_parameters, and the "permitter" strategy that Adam Hawkins is using: http://broadcastingadam.com/2012/07/parameter_authorization_in_rails_apis/ Code so far is here (in the

This is very useful for debugging multithreaded programs. Rich.