4 ms·
First boot in the morning was cold, and —the hardware having literally been cold— took minutes longer than subsequent, warm, boots.
by 082349872349872 2y ago
First boot in the morning was cold, and —the hardware having literally been cold— took minutes longer than subsequent, warm, boots.
- kazinator 2y agoThat wouldn't be on account of the tubes; tube filaments do not take minutes to heat up the cathodes. Warm boots can save time by not repeating all the boostrapping steps. In a warm boot, you typically don't execute any power-on self-checks, for starters.
- 082349872349872 2y agoMaybe I'm misremembering (I was very young) or maybe I was with people who were too superstitious, but these tubes themselves were actually from the 1950s, and they did indeed take a significant amount of time before they decided the hardware was "warm enough" that one could let the software start doing its thing.