Boot memory detect & update

[ucwong]

No description provided.

[codecov]

Codecov Report

Merging #928 (e289e44) into master (a6f4ef8) will decrease coverage by 0.03%.
The diff coverage is 8.33%.

❗ Current head e289e44 differs from pull request most recent head 471129d. Consider uploading reports for the commit 471129d to get more accurate results

@@            Coverage Diff             @@
##           master     #928      +/-   ##
==========================================
- Coverage   49.45%   49.42%   -0.04%     
==========================================
  Files         415      415              
  Lines       46566    46572       +6     
==========================================
- Hits        23030    23019      -11     
- Misses      21541    21544       +3     
- Partials     1995     2009      +14     

Impacted Files	Coverage Δ
cmd/cortex/main.go	22.54% <ø> (+2.54%)	⬆️
cmd/utils/flags.go	1.93% <0.00%> (-0.05%)	⬇️
core/state/snapshot/difflayer.go	71.01% <20.00%> (-1.13%)	⬇️
accounts/keystore/watch.go	90.69% <0.00%> (-4.66%)	⬇️
p2p/simulations/mocker.go	27.83% <0.00%> (-2.07%)	⬇️
p2p/discover/table.go	82.48% <0.00%> (-1.83%)	⬇️
ctxc/downloader/statesync.go	55.03% <0.00%> (-1.17%)	⬇️
trie/proof.go	72.49% <0.00%> (-0.98%)	⬇️
ctxc/downloader/downloader.go	75.90% <0.00%> (-0.96%)	⬇️
p2p/simulations/network.go	57.57% <0.00%> (-0.87%)	⬇️
... and 5 more