| Commit message (Collapse) | Author | Age |
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In particular, fixed the handling of } when nesting gets complex.
Made the reporting of block percentiles consistent with the ! reporting.
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Fixed an important bug whereby thread info wasn't being taken into
account for ! marks.
Also dramatically improved performance by getting rid of a silly O(n^2)
loop.
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Have the function expect sorted input.
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Namely, 50,90,95 and 99th percentiles are now reported on important marks.
Example output (for a single ! mark between begin-end marks in grpc_tcp_write()):
```
Important marks:
================
99999@src/core/iomgr/tcp_posix.c:545
Relative mark: 50th p. 90th p. 95th p. 99th p.
205 { (src/core/iomgr/tcp_posix.c:541): 0.037 0.057 0.070 0.087
205 } (src/core/iomgr/tcp_posix.c:556): 15.181 27.021 32.509 41.103
```
For a fabricated example (see https://gist.github.com/dgquintas/026d333815589cc37269) with the same ! mark
in two different frames, the output is:
```
Important marks:
================
999999@src/core/iomgr/tcp_posix.c:5
Relative mark: 50th p. 90th p. 95th p. 99th p.
205 { (src/core/iomgr/tcp_posix.c:1): 9.500 13.900 14.450 14.890
205 } (src/core/iomgr/tcp_posix.c:6): 3.000 4.600 4.800 4.960
999999@src/core/iomgr/tcp_posix.c:3
Relative mark: 50th p. 90th p. 95th p. 99th p.
205 { (src/core/iomgr/tcp_posix.c:1): 2.500 2.900 2.950 2.990
205 { (src/core/iomgr/tcp_posix.c:2): 1.500 1.900 1.950 1.990
205 } (src/core/iomgr/tcp_posix.c:4): 2.000 2.800 2.900 2.980
205 } (src/core/iomgr/tcp_posix.c:6): 10.000 15.600 16.300 16.860
```
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For example, an input of
GRPC_LAT_PROF 1316908107613.015869 0x7fd35f7fe700 { 205 (nil)
src/core/iomgr/tcp_posix.c 1
GRPC_LAT_PROF 1316908107614.015869 0x7fd35f7fe700 { 205 (nil)
src/core/iomgr/tcp_posix.c 2
GRPC_LAT_PROF 1316908107615.015869 0x7fd35f7fe700 ! 999999 (nil)
src/core/iomgr/tcp_posix.c 3
GRPC_LAT_PROF 1316908107616.015869 0x7fd35f7fe700 } 205 (nil)
src/core/iomgr/tcp_posix.c 4
GRPC_LAT_PROF 1316908107617.015869 0x7fd35f7fe700 ! 999999 (nil)
src/core/iomgr/tcp_posix.c 5
GRPC_LAT_PROF 1316908107618.015869 0x7fd35f7fe700 } 205 (nil)
src/core/iomgr/tcp_posix.c 6
results in
tag 50%/90%/95%/99% us
205 5.00/5.00/5.00/5.00
Important marks:
================
999999 @ src/core/iomgr/tcp_posix.c:3
205 { (src/core/iomgr/tcp_posix.c:1): 2.000 us
205 { (src/core/iomgr/tcp_posix.c:2): 1.000 us
205 } (src/core/iomgr/tcp_posix.c:4): -1.000 us
205 } (src/core/iomgr/tcp_posix.c:6): -3.000 us
999999 @ src/core/iomgr/tcp_posix.c:5
205 { (src/core/iomgr/tcp_posix.c:1): 4.000 us
205 } (src/core/iomgr/tcp_posix.c:6): -1.000 us
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David Garcia Quintas
Craig Tiller