On WSL2 with networkingMode=mirrored, connect_ex() to non-listening ports
gets black-holed through the Windows host networking stack instead of
returning ECONNREFUSED. Without a timeout, TCP SYN retransmits with
exponential backoff (1+2+4+8+16+32+64 ≈ 127s per port), causing Router
Mode's port scan of 15001-15010 to stall for ~280 seconds on startup.
Adding a 1-second timeout makes connect_ex() fail fast, reducing startup
from ~303s to ~23s on affected systems.
Tested on WSL2 Ubuntu 24.04 with mirrored networking, KoboldCpp v1.110,
RTX 3090 Ti, Qwen3.5-27B Q4_K_M.
* sd: remove C++ support for enforcing fixed LoRA multipliers
The logic at the Python level is enough.
* sd: support changing preloaded LoRA multipliers
We keep the same rules as before:
- Any LoRA with multiplier 0 can be changed
- If all LoRAs have multiplier != 0, they are fixed and optimized
but tweak the corner case of LoRAs specified more than once to
allow adjusting the multiplier if the same LoRA is also specified
with a zero multiplier, as if they were two different LoRAs.
So the following keeps working as before:
- --sdlora /loras/lcm.gguf --sdloramult 1 : fixed as 1
- --sdlora /loras/lcm.gguf --sdloramult 0 : dynamic, default 0
- --sdlora /loras/ : dynamic, default 0
- --sdlora /loras/lcm.gguf /loras/lcm.gguf --sdloramult 1 1 : fixed as 2
But now we have:
- --sdlora /loras/lcm.gguf /loras/lcm.gguf --sdloramult 1 0 : dynamic, default 1
- --sdlora /loras/lcm.gguf /loras/ --sdloramult 1 : dynamic, default 1
* backend support for controlling LoRA cache and fixed multipliers
The generation LoRA multipliers are now added to the initial
multipliers, so e.g. a merged LCM model will behave the same as
a normal model with a preloaded LCM LoRA.
* frontend support
* sd: sync to master-525-d6dd6d7
* sd: add support for cache modes for inference acceleration
* keep gendefaults as a JSON object inside the config file
* covered more invalid cases on gendefaults parsing
`0. in inputs.lora_multipliers` didn't work because the C array has
variable length.
Also fixed a few corner cases related to the default multipliers
(mainly to ensure robustness against future changes, since in most
cases the multiplier list is already sanitized by a previous
function).
