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Feature/memory optimization config (#108)

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* feat(config): optimize memory usage to prevent OOM killer

- Reduce brightness from 95 to 50 to lower power consumption
- Reduce refresh rate from 120Hz to 100Hz to reduce CPU/memory pressure
- Reduce background service workers from 3 to 1 per manager
- Change hardware mapping from adafruit-hat-pwm to adafruit-hat
- Expected memory savings: ~700MB reduction in background service usage
- Addresses SIGKILL errors caused by memory exhaustion on Raspberry Pi

Fixes: OOM killer terminating ledmatrix.service with status=9/KILL

* revert display brightness

* refactor(background-service): hardcode optimized settings and remove config blocks

- Hardcode background service to 1 worker in all managers
- Remove background_service config blocks from template
- Simplify configuration for users - no need to adjust system settings
- Memory optimization: ~700MB reduction in background service usage
- Settings: 1 worker, 30s timeout, 3 retries (hardcoded)

Files updated:
- src/base_classes/sports.py
- src/leaderboard_manager.py
- src/odds_ticker_manager.py
- src/soccer_managers.py
- src/milb_manager.py
- config/config.template.json

This prevents OOM killer errors by reducing memory usage from
15 background threads to 5 threads total across all managers.

* remove fallback in case of background service failure
This commit is contained in:
Chuck
2025-10-08 20:10:54 -04:00
committed by GitHub
parent 58bbb5fe6f
commit 7a61ecff7b
18 changed files with 36 additions and 437 deletions
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73
config/config.template.json
View File

@@ -17,8 +17,8 @@
"cols": 64,
"chain_length": 2,
"parallel": 1,
"brightness": 95,
"hardware_mapping": "adafruit-hat-pwm",
"brightness": 90,
"hardware_mapping": "adafruit-hat",
"scan_mode": 0,
"pwm_bits": 9,
"pwm_dither_bits": 1,
@@ -26,7 +26,7 @@
"disable_hardware_pulsing": false,
"inverse_colors": false,
"show_refresh_rate": false,
"limit_refresh_rate_hz": 120
"limit_refresh_rate_hz": 100
},
"runtime": {
"gpio_slowdown": 3
@@ -152,14 +152,7 @@
"dynamic_duration": true,
"min_duration": 30,
"max_duration": 300,
"duration_buffer": 0.1,
"background_service": {
"enabled": true,
"max_workers": 3,
"request_timeout": 30,
"max_retries": 3,
"priority": 2
}
"duration_buffer": 0.1
},
"leaderboard": {
"enabled": false,
@@ -202,14 +195,7 @@
"request_timeout": 30,
"dynamic_duration": true,
"min_duration": 30,
"max_display_time": 600,
"background_service": {
"enabled": true,
"max_workers": 3,
"request_timeout": 30,
"max_retries": 3,
"priority": 2
}
"max_display_time": 600
},
"calendar": {
"enabled": false,
@@ -241,13 +227,6 @@
],
"logo_dir": "assets/sports/nhl_logos",
"show_records": true,
"background_service": {
"enabled": true,
"max_workers": 3,
"request_timeout": 30,
"max_retries": 3,
"priority": 2
},
"display_modes": {
"nhl_live": true,
"nhl_recent": true,
@@ -275,13 +254,6 @@
],
"logo_dir": "assets/sports/nba_logos",
"show_records": true,
"background_service": {
"enabled": true,
"max_workers": 3,
"request_timeout": 30,
"max_retries": 3,
"priority": 2
},
"display_modes": {
"nba_live": true,
"nba_recent": true,
@@ -309,13 +281,6 @@
],
"logo_dir": "assets/sports/wnba_logos",
"show_records": true,
"background_service": {
"enabled": true,
"max_workers": 3,
"request_timeout": 30,
"max_retries": 3,
"priority": 2
},
"display_modes": {
"wnba_live": true,
"wnba_recent": true,
@@ -344,13 +309,6 @@
],
"logo_dir": "assets/sports/nfl_logos",
"show_records": true,
"background_service": {
"enabled": true,
"max_workers": 3,
"request_timeout": 30,
"max_retries": 3,
"priority": 2
},
"display_modes": {
"nfl_live": true,
"nfl_recent": true,
@@ -378,13 +336,6 @@
"logo_dir": "assets/sports/ncaa_logos",
"show_records": true,
"show_ranking": true,
"background_service": {
"enabled": true,
"max_workers": 3,
"request_timeout": 30,
"max_retries": 3,
"priority": 2
},
"display_modes": {
"ncaa_fb_live": true,
"ncaa_fb_recent": true,
@@ -570,13 +521,6 @@
"logo_dir": "assets/sports/milb_logos",
"show_records": true,
"upcoming_fetch_days": 7,
"background_service": {
"enabled": true,
"max_workers": 3,
"request_timeout": 30,
"max_retries": 3,
"priority": 2
},
"display_modes": {
"milb_live": true,
"milb_recent": true,
@@ -623,13 +567,6 @@
],
"logo_dir": "assets/sports/soccer_logos",
"show_records": true,
"background_service": {
"enabled": true,
"max_workers": 3,
"request_timeout": 30,
"max_retries": 3,
"priority": 2
},
"display_modes": {
"soccer_live": true,
"soccer_recent": true,