commit | cf52b262b1c4b8fae1c71a6890d308bc4426a4f8 | [log] [tgz] |
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author | Fadi Meawad <fmeawad@google.com> | Tue Dec 04 10:57:04 2018 -0800 |
committer | CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org> | Wed Dec 05 16:13:09 2018 +0000 |
tree | e33d321c958750493d807c8a678c0bd2f712e3e8 | |
parent | 55ec689dee0479a5c24b38eec4f015b27496c7b3 [diff] |
[tracing] Stop splitting bounded duration events into start and end events This is step 3, where is switch the calls that already uses bounded trace event to use the duration complete events. This will transform the kernel syscalls and the vcpu events to the new duration events, almost halving the size needed for those in the trace buffer and in the output file. The next step is to make more calls use the bounded event records mainly the TRACE_DURATION macro. BUG: PT-72 TEST: manually verifying that those events appear correctly in traces + CQ Change-Id: I6f8a71d281845b431077b914541565cd32065e0f
Zircon is the core platform that powers the Fuchsia OS. Zircon is composed of a microkernel (source in kernel/...) as well as a small set of userspace services, drivers, and libraries (source in system/...) necessary for the system to boot, talk to hardware, load userspace processes and run them, etc. Fuchsia builds a much larger OS on top of this foundation.
The canonical Zircon Git repository is located at: https://fuchsia.googlesource.com/zircon
A read-only mirror of the code is present at: https://github.com/fuchsia-mirror/zircon
The Zircon Kernel provides syscalls to manage processes, threads, virtual memory, inter-process communication, waiting on object state changes, and locking (via futexes).
Currently there are some temporary syscalls that have been used for early bringup work, which will be going away in the future as the long term syscall API/ABI surface is finalized. The expectation is that there will be about 100 syscalls.
Zircon syscalls are generally non-blocking. The wait_one, wait_many port_wait and thread sleep being the notable exceptions.
This page is a non-comprehensive index of the zircon documentation.