Support thread time

[PanQL]

• add thread-time support

[wangrunji0408]

I think we should use timer_now() to get time in nanoseconds instead of TSC?

[wangrunji0408]

WARN: performance regression detected on qemu-kvm!

Reason: Reading CPUID(major) and TSC(minor) is expensive in virtual machine.

[coveralls]

Pull Request Test Coverage Report for Build 102161501

Warning: This coverage report may be inaccurate.

This pull request's base commit is no longer the HEAD commit of its target branch. This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

• For more information on this, see Tracking coverage changes with pull request builds.
• To avoid this issue with future PRs, see these Recommended CI Configurations.
• For a quick fix, rebase this PR at GitHub. Your next report should be accurate.

Details

• 0 of 8 (0.0%) changed or added relevant lines in 2 files are covered.
• 33 unchanged lines in 6 files lost coverage.
• Overall coverage decreased (-2.2%) to 23.677%

---

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
zircon-syscall/src/time.rs	0	2	0.0%
zircon-object/src/task/thread.rs	0	6	0.0%

Files with Coverage Reduction	New Missed Lines	%
../../../../../usr/share/rust/.cargo/registry/src/github.com-1ecc6299db9ec823/async-std-1.5.0/src/task/task.rs	1	64.29%
zircon-syscall/src/time.rs	1	0.0%
../../../../../usr/share/rust/.cargo/registry/src/github.com-1ecc6299db9ec823/spin-0.5.2/src/mutex.rs	2	91.67%
../../../../../usr/share/rust/.cargo/registry/src/github.com-1ecc6299db9ec823/async-task-1.3.1/src/utils.rs	5	61.54%
../../../../../usr/share/rust/.cargo/registry/src/github.com-1ecc6299db9ec823/async-task-1.3.1/src/raw.rs	10	61.64%
../../../../../usr/share/rust/.cargo/registry/src/github.com-1ecc6299db9ec823/async-std-1.5.0/src/task/builder.rs	14	51.72%

Totals
Change from base Build 101591891:	-2.2%
Covered Lines:	1696
Relevant Lines:	7163

---

💛 - Coveralls

[coveralls]

Pull Request Test Coverage Report for Build 102142936

Warning: This coverage report may be inaccurate.

This pull request's base commit is no longer the HEAD commit of its target branch. This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

• For more information on this, see Tracking coverage changes with pull request builds.
• To avoid this issue with future PRs, see these Recommended CI Configurations.
• For a quick fix, rebase this PR at GitHub. Your next report should be accurate.

Details

• 0 of 8 (0.0%) changed or added relevant lines in 2 files are covered.
• 36 unchanged lines in 8 files lost coverage.
• Overall coverage decreased (-2.3%) to 23.619%

---

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
zircon-syscall/src/time.rs	0	2	0.0%
zircon-object/src/task/thread.rs	0	6	0.0%

Files with Coverage Reduction	New Missed Lines	%
../../../../../usr/share/rust/.cargo/registry/src/github.com-1ecc6299db9ec823/async-std-1.5.0/src/task/task.rs	1	64.29%
zircon-object/src/object/mod.rs	1	66.86%
zircon-syscall/src/time.rs	1	0.0%
kernel-hal/src/dummy.rs	2	6.67%
../../../../../usr/share/rust/.cargo/registry/src/github.com-1ecc6299db9ec823/spin-0.5.2/src/mutex.rs	2	91.67%
../../../../../usr/share/rust/.cargo/registry/src/github.com-1ecc6299db9ec823/async-task-1.3.1/src/utils.rs	5	61.54%
../../../../../usr/share/rust/.cargo/registry/src/github.com-1ecc6299db9ec823/async-task-1.3.1/src/raw.rs	10	60.73%
../../../../../usr/share/rust/.cargo/registry/src/github.com-1ecc6299db9ec823/async-std-1.5.0/src/task/builder.rs	14	51.72%

Totals
Change from base Build 101591891:	-2.3%
Covered Lines:	1693
Relevant Lines:	7168

---

💛 - Coveralls