Chiebot-Mirror/grpc - grpc - Gitea: Git with a cup of tea

Commit Graph

Author	SHA1	Message	Date
Craig Tiller	268a47a2b1	Add latency profiling from 'important' marks Allows seeing directly how long was spent: - running up to putting bytes on the wire - between sending and receiving - between receiving and finishing	9 years ago
Craig Tiller	cb6ce54e31	Update copyrights	9 years ago
Craig Tiller	897e4fe2ad	Update copyrights	9 years ago
Craig Tiller	61ead3e061	Lower latency profiling Current latency profiles have their tails dominated by writing latency logs, which is hugely undesirable. Now when a thread log fills up, push it to a background thread to write to disk. At shutdown, wait for all latency traces to be flushed.	9 years ago
Craig Tiller	494f7da271	Remove extra line	9 years ago
Craig Tiller	1f41b6b5ed	Simplify adding annotations, annotate more things	9 years ago
Craig Tiller	dd25694733	Script to generate latency reports	9 years ago
Craig Tiller	86253ca1da	Latency traces	9 years ago
Craig Tiller	9bb0161251	Further work on new prof analyzer	9 years ago
Craig Tiller	504ed5997a	Get basic profiler working again	9 years ago
Nathaniel Manista	ae4fbcd643	Use "#!/usr/bin/env python2.7" only in utilities	9 years ago
David Garcia Quintas	9b0a94b5c7	Further fixes and eye candy. In particular, fixed the handling of } when nesting gets complex. Made the reporting of block percentiles consistent with the ! reporting.	10 years ago
David Garcia Quintas	7cff3ee205	Handling of ! tags across threads & performance. 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.	10 years ago
David Garcia Quintas	975efdc915	Avoid repeated sortings in percentile() calls. Have the function expect sorted input.	10 years ago
David Garcia Quintas	776075a80a	Implemented aggregation over important mark times. 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 ```	10 years ago
David Garcia Quintas	5b2ea2979b	Added support for important mark (!) analysis. 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	10 years ago
Craig Tiller	bd9f924f16	Basic profiler analyzer	10 years ago

6 Commits (c217e490b176669bf93c04e772218d88b5fef764)