3 ms·
Logging to a 'serial' console can stall the whole kernel, wrecking latency, and this can easily show up in VMs since a lot of them emulate a lowest-common-denom
by rcxdude 2y ago
Logging to a 'serial' console can stall the whole kernel, wrecking latency, and this can easily show up in VMs since a lot of them emulate a lowest-common-denominator UART inerface as the kernel console.
- ahoka 2y agoI remember setting a server’s console baudrate in EFI to its higher setting improved boot times, hehe.