Router: improve Protobuf memory usage

[hossinasaadi]

Reduce Protobuf Memory Usage on iOS

Under the same routing configuration on iOS, memory usage drops from 28.6 MB (main) to 25.1 MB with this PR, saving ~3.5 MB of RAM.
@Fangliding Could you please check the VmHWM value?

@RPRX

[hossinasaadi]

also some test result on macos :

PR:
ReadOnly portion of Libraries: Total=890.9M resident=142.4M(16%) swapped_out_or_unallocated=748.4M(84%)
Writable regions: Total=71.3M written=3953K(5%) resident=10.9M(15%) swapped_out=0K(0%) unallocated=60.4M(85%)
==== Writable regions for process 34931
ReadOnly portion of Libraries: Total=890.9M resident=142.4M(16%) swapped_out_or_unallocated=748.4M(84%)
Writable regions: Total=71.3M written=3953K(5%) resident=10.9M(15%) swapped_out=0K(0%) unallocated=60.4M(85%)
==== Writable regions for process 34931
ReadOnly portion of Libraries: Total=890.9M resident=142.4M(16%) swapped_out_or_unallocated=748.4M(84%)
Writable regions: Total=71.3M written=3953K(5%) resident=10.9M(15%) swapped_out=0K(0%) unallocated=60.4M(85%)
==== Writable regions for process 34931
ReadOnly portion of Libraries: Total=890.9M resident=142.4M(16%) swapped_out_or_unallocated=748.4M(84%)
Writable regions: Total=71.3M written=3953K(5%) resident=10.9M(15%) swapped_out=0K(0%) unallocated=60.4M(85%)
==== Writable regions for process 34931
ReadOnly portion of Libraries: Total=890.9M resident=142.4M(16%) swapped_out_or_unallocated=748.4M(84%)
Writable regions: Total=71.3M written=3953K(5%) resident=10.9M(15%) swapped_out=0K(0%) unallocated=60.4M(85%)
==== Writable regions for process 34931
ReadOnly portion of Libraries: Total=890.9M resident=142.4M(16%) swapped_out_or_unallocated=748.4M(84%)
Writable regions: Total=71.3M written=3953K(5%) resident=10.9M(15%) swapped_out=0K(0%) unallocated=60.4M(85%)
==== Writable regions for process 34931
ReadOnly portion of Libraries: Total=890.9M resident=142.4M(16%) swapped_out_or_unallocated=748.4M(84%)
Writable regions: Total=71.3M written=3953K(5%) resident=10.9M(15%) swapped_out=0K(0%) unallocated=60.4M(85%)
==== Writable regions for process 34931
ReadOnly portion of Libraries: Total=890.9M resident=142.4M(16%) swapped_out_or_unallocated=748.4M(84%)
Writable regions: Total=71.3M written=3953K(5%) resident=10.9M(15%) swapped_out=0K(0%) unallocated=60.4M(85%)
==== Writable regions for process 34931
ReadOnly portion of Libraries: Total=890.9M resident=142.4M(16%) swapped_out_or_unallocated=748.4M(84%)
Writable regions: Total=71.3M written=3953K(5%) resident=10.9M(15%) swapped_out=0K(0%) unallocated=60.4M(85%)
==== Writable regions for process 34931
ReadOnly portion of Libraries: Total=890.9M resident=142.4M(16%) swapped_out_or_unallocated=748.4M(84%)
Writable regions: Total=71.3M written=3953K(5%) resident=10.9M(15%) swapped_out=0K(0%) unallocated=60.4M(85%)


  Main:
==== Writable regions for process 33259
ReadOnly portion of Libraries: Total=890.9M resident=142.3M(16%) swapped_out_or_unallocated=748.6M(84%)
Writable regions: Total=590.7M written=4865K(1%) resident=12.0M(2%) swapped_out=0K(0%) unallocated=578.7M(98%)
==== Writable regions for process 33259
ReadOnly portion of Libraries: Total=890.9M resident=142.3M(16%) swapped_out_or_unallocated=748.6M(84%)
Writable regions: Total=590.7M written=4865K(1%) resident=12.0M(2%) swapped_out=0K(0%) unallocated=578.7M(98%)
==== Writable regions for process 33259
ReadOnly portion of Libraries: Total=890.9M resident=142.3M(16%) swapped_out_or_unallocated=748.6M(84%)
Writable regions: Total=590.7M written=4865K(1%) resident=12.0M(2%) swapped_out=0K(0%) unallocated=578.7M(98%)
==== Writable regions for process 33259
ReadOnly portion of Libraries: Total=890.9M resident=142.3M(16%) swapped_out_or_unallocated=748.6M(84%)
Writable regions: Total=590.7M written=4865K(1%) resident=12.0M(2%) swapped_out=0K(0%) unallocated=578.7M(98%)
==== Writable regions for process 33259
ReadOnly portion of Libraries: Total=890.9M resident=142.3M(16%) swapped_out_or_unallocated=748.6M(84%)
Writable regions: Total=590.7M written=4865K(1%) resident=12.0M(2%) swapped_out=0K(0%) unallocated=578.7M(98%)
==== Writable regions for process 33259
ReadOnly portion of Libraries: Total=890.9M resident=142.3M(16%) swapped_out_or_unallocated=748.6M(84%)
Writable regions: Total=590.7M written=4865K(1%) resident=12.0M(2%) swapped_out=0K(0%) unallocated=578.7M(98%)
==== Writable regions for process 33259
ReadOnly portion of Libraries: Total=890.9M resident=142.3M(16%) swapped_out_or_unallocated=748.6M(84%)
Writable regions: Total=590.7M written=4865K(1%) resident=12.0M(2%) swapped_out=0K(0%) unallocated=578.7M(98%)
==== Writable regions for process 33259
ReadOnly portion of Libraries: Total=890.9M resident=142.3M(16%) swapped_out_or_unallocated=748.6M(84%)
Writable regions: Total=590.7M written=4865K(1%) resident=12.0M(2%) swapped_out=0K(0%) unallocated=578.7M(98%)
==== Writable regions for process 33259
ReadOnly portion of Libraries: Total=890.9M resident=142.6M(16%) swapped_out_or_unallocated=748.3M(84%)
Writable regions: Total=590.7M written=4865K(1%) resident=12.0M(2%) swapped_out=0K(0%) unallocated=578.7M(98%)
==== Writable regions for process 33259
ReadOnly portion of Libraries: Total=890.9M resident=142.7M(16%) swapped_out_or_unallocated=748.2M(84%)
Writable regions: Total=590.7M written=4865K(1%) resident=12.0M(2%) swapped_out=0K(0%) unallocated=578.7M(98%)

[Fangliding]

这个pr后 110592 kB
这个pr前 106600 kB
最新release(无mmap) 113368 kB
ps: 数值可能有个位数百分比的浮动
mmap确实带来了一点点提升 不够这个似乎是负作用或者没作用((

[hossinasaadi]

这个pr后 110592 kB 这个pr前 106600 kB 最新release(无mmap) 113368 kB ps: 数值可能有个位数百分比的浮动 mmap确实带来了一点点提升 不够这个似乎是负作用或者没作用((

Intresting, but on iOS, the memory improvement is clearly visible. 🤔

[Fangliding]

btw mmap的pr后静置内存似乎有增加(?
最新release 42 MB
mmap 后 47 MB
该pr后 49 MB
可能是一些乱七八糟的gc问题