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[services] optimize startup time on warm boot #3651

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stepanblyschak
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- What I did

  • start services after syncd
  • make snmp.timer work again and add telemetry.timer
  • optimize sonic-cfggen on startup

- How I did it

- How to verify it

warm reboot and measure LAG restore time

- Description for the changelog

- A picture of a cute animal (not mandatory but encouraged)

Stepan Blyschak added 4 commits October 21, 2019 08:18
a lot of template rendering causes switch to start longer because jinja2
needs to parse them. Introducing RedisBytecodeCache to store parsed buckets of
internal template bytecode to speedup same template rendering during start

Signed-off-by: Stepan Blyschak <[email protected]>
@lguohan
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lguohan commented Oct 23, 2019

how much time are we talking about here?

there are three optimizations, do you have a break down of the saving?

also I think it will easier to break the python optimiation to a separate pr since it is probably more straightforward than the other two. I suggest to break this into three pr.

@stepanblyschak
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@lguohan
Sure, will do a separation

  1. radv, dhcp_relay, lldp, snmp, telemetry, sflow start after syncd, there is no dependency change here, but just a startup order, saves 10s
  2. snmp.timer & telemetry.timer saves 10 s as well
  3. sonic-cfggen start optimization saves 8s (mostly 'lazy_re' change)

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lguohan commented Oct 31, 2019

obseleted by #3658 , #3657 , #3656

@lguohan lguohan closed this Oct 31, 2019
@stepanblyschak stepanblyschak deleted the start_opt branch September 23, 2022 13:31
mssonicbld added a commit that referenced this pull request Dec 10, 2024
…atically (#20573)

#### Why I did it
src/sonic-utilities
```
* 32e6de7f - (HEAD -> master, origin/master, origin/HEAD) Update DB migrator script to next branch 202505 (#3664) (3 days ago) [Kumaresh Perumal]
* 8d00aba7 - (origin/test_202411_20, origin/test_202411_100, origin/kperumal_202411, origin/202411) Fix save_file command in generate_dump (#3647) (4 days ago) [DavidZagury]
* 038aaa5f - Revert "Speed up route_check script" (#3653) (4 days ago) [xwjiang-ms]
* 032a0e03 - [config]Restrict YANG validation to Golden Config (#3656) (4 days ago) [jingwenxie]
* 47b79bea - Update gcu_field_operation_validators.conf.json with Arista-7260CX3-D108C10 (#3650) (4 days ago) [Dev Ojha]
* 845f46ef - Update PR checker pipeline to point to bookworm (#3651) (4 days ago) [bingwang-ms]
* 28e645f4 - [show_tech] Filter out a list of commands in generate_dump script which are not applicable to Supervisor (#3646) (5 days ago) [Marty Y. Lok]
* b767cb86 - [cisco|express-boot]: Add support for cisco express boot in sonic-utilities (#3056) (6 days ago) [jhli-cisco]
* f6b9912c - Fix show command column change issue (#3645) (8 days ago) [Feng-msft]
* 9cd6c8de - Debug dump utility dash objects update (#3387) (8 days ago) [Gagan Punathil Ellath]
* f705c456 - Validate interface name length in CLI (#3580) (8 days ago) [Stepan Blyshchak]
* 3d78cb16 - [Mellanox] Update the save_file command in generate_dump to handle folders (#3631) (13 days ago) [DavidZagury]
* 5086a43b - Fix counterpoll show for ENI Counters (#3618) (13 days ago) [Vivek]
* 70f81397 - Extra delay between running firmware and updating firmware version (#3610) (2 weeks ago) [Stephen Sun]
* 636f7f1d - Add port FEC BER show changes (#3607) (2 weeks ago) [vincentpcng]
* 5e60031b - Supports FRR-VRRP configuration (#2949) (3 weeks ago) [Philo]
* 9bd37dc6 - [ARM64][Warm-Reboot]: Get boot arguments from uboot environment (#3613) (3 weeks ago) [Parthiv Shah]
* 171b16c2 - platform/innovium renaming to platform/marvell-teralynx (#3474) (3 weeks ago) [krismarvell]
* 2cbfcc91 - [Mellanox] Add Mellanox-SN5600-C224O8 to gcu_field.json (#3612) (4 weeks ago) [noaOrMlnx]
* a8f7bde0 - PVST Feature commit (#3567) (4 weeks ago) [Divya Kumaran Chandralekha]
* 0e188076 - Refresh dump file modify timestamp before cleanup call (#3595) (4 weeks ago) [anamehra]
* 8f3c5ef5 - [warm-reboot] Add support to pass extra kernel cmdline parameters (#3192) (4 weeks ago) [Pavan Naregundi]
* 96774477 - Run yang validation in db migrator (#3102) (4 weeks ago) [ganglv]
* 9708f52b - [Mellanox] Update C256X1 SKU to be C256S1 in gcu_field.json (#3611) (4 weeks ago) [noaOrMlnx]
* 093ed4aa - [SPM] Add logic to disable the feature before stopping it and enabling it before starting (#3344) (4 weeks ago) [Vadym Hlushko]
* 7d013dff - Fix slash in path. (#3573) (5 weeks ago) [Xincun Li]
* 0af4386e - Consolidate the get running config way. (#3585) (5 weeks ago) [Xincun Li]
* 964b4895 - Fix for integer overflow of counter value if its too large (#3596) (5 weeks ago) [harjotsinghpawra]
* 3354d08a - [config] Bypass standard input for reload (#3597) (5 weeks ago) [jingwenxie]
* 7cbcfda5 - Speed up route_check script (#3544) (5 weeks ago) [Deepak Singhal]
* 329fc223 - Add support of the pensando-dpu platform to generate-dump utility. (#3557) (6 weeks ago) [BHUKYA SIDDHU]
* 0ae2ec1e - Add CLI for bmp configdb entity Enable/Disable (#3286) (6 weeks ago) [Feng-msft]
* 5b37ee6c - Vnet_route_check TCP socket for DB connection. (#3578) (6 weeks ago) [siqbal1986]
* d64a90a0 - Adds logic to get default disk and check disk type (#3399) (6 weeks ago) [Ashwin Srinivasan]
* b2b97340 - [Banner] Added CLI commands to configure Banner and display current configuration (#3021) (6 weeks ago) [Sviatoslav Boichuk]
* d0aa94a1 - Revert "Record and warn tables which not covered by YANG (#3583)" (#3588) (7 weeks ago) [jingwenxie]
* aeda86a1 - Record and warn tables which not covered by YANG (#3583) (7 weeks ago) [jingwenxie]
* dd34d7c4 - Revert "Skip default lanes dup check (#3489)" (#3572) (7 weeks ago) [Xincun Li]
* 6c8007fa - [Mellanox]Remove deprecated sdk sniffer cli and collect sdk dump in show techsupport (#3491) (7 weeks ago) [Yuanzhe]
* 89bb87ad - Add YANG validation for config reload if file is given (#3576) (7 weeks ago) [jingwenxie]
```
#### How I did it
#### How to verify it
#### Description for the changelog
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