Re:Flow browser passes the Acid tests
by fouric on Saturday June 13, 2020 @07:50PM
(#23513876)
I'm specifically referring to applications (like Chrome) that you use interactively in the foreground. When using one of these applications, your device is not off or in sleep mode - it is on, you are interacting with it, and it is either consuming more CPU or less. A memory-hungry, CPU-light design drains your battery more slowly than one the other way around.
Additionally, the extra power cost of adding more RAM to a device is very low relative to even using 25% of total CPU TDP. [1] gives 3W per DIMM for DDR3 (which is an upper bound, given that LPDDR3 will consume far less power while fully on, let alone in deep sleep mode) and [2] gives 2.5W for DDR2.
Edit: aha, found a paper[3] on RAM power consumption in a phone. Far less than 5% in either "suspended" or "idle" states, under 10% in almost every other benchmark, and universally lower than CPU power consumption.
Additionally, the extra power cost of adding more RAM to a device is very low relative to even using 25% of total CPU TDP. [1] gives 3W per DIMM for DDR3 (which is an upper bound, given that LPDDR3 will consume far less power while fully on, let alone in deep sleep mode) and [2] gives 2.5W for DDR2.
Edit: aha, found a paper[3] on RAM power consumption in a phone. Far less than 5% in either "suspended" or "idle" states, under 10% in almost every other benchmark, and universally lower than CPU power consumption.
[1] http://www.buildcomputers.net/power-consumption-of-pc-compon...
[2] https://superuser.com/questions/40113/does-installing-larger...
[3] https://www.usenix.org/legacy/event/atc10/tech/full_papers/C...