|
Microsoft targets 15-second bootups for Windows 7 - TechAmok
Microsoft targets 15-second bootups for Windows 7 - [software] 07:45 PM EDT - Sep,03 2008 - post a comment A
senior member of the Windows 7 development team says that there is a team of
engineers dedicated to start up performance that has set a goal of having a 15
second or less boot time. The post goes into detail about what it takes to
achieve that goal and how the team is progressing. Here's an excerpt:
From our perspective, too few systems consistently boot fast enough and we
have to do much better. Obviously the systems that are greater than 60 seconds
have something we need to dramatically improve-whether these are devices,
networking, or software issues. As you can see there are some systems
experiencing very long boot times. One of the things we see in the PC space is
this variability of performance-variability arises from the variety of choices,
and also the variety of quality of components of any given PC experience. There
are also some system maintenance tasks that can contribute to long boot times.
If a user opts to install a large software update, the actual updating of the
system may occur during the next boot. Our metrics will capture these and
unfortunately they can take minutes to complete. Regardless of the cause, a big
part of the work we need to do as members of the PC ecosystem is address long
boot times.
Before discussing some of our Windows 7 efforts, we'd like to point out there is
considerable engagement with our partners underway. In scanning dozens of
systems, we've found plenty of opportunity for improvement and have made
changes. Illustrating that, please consider the following data taken from a real
system. As the system arrived to us, the off-the-shelf configuration had a ~45
second boot time. Performing a clean install of Vista SP1 on the same system
produced a consistent ~23 second boot time. Of course, being a clean install,
there were many fewer processes, services and a slightly different set of
drivers (mostly the versions were different). However, we were able to take
the off-the-shelf configuration and optimize it to produce a consistent boot
time of ~21 seconds, ~2 seconds faster than the clean install because some
driver/BIOS changes could be made in the optimized configuration. For this same
system, it is worth noting the resume from sleep time is approximately 2
seconds, achieving a nearly instant on experience. We do encourage users to
choose sleep as an alternative to boot.
As an example Windows 7 effort, we are working very hard on system services.
We aim to dramatically reduce them in number, as well as reduce their CPU, disk
and memory demands. Our perspective on this is simple; if a service is not
absolutely required, it shouldn't be starting and a trigger should exist to
handle rare conditions so that the service operates only then. Of course,
services exist to complete user experiences, even rare ones. Consider the case
where a new keyboard, mouse or tablet HW is added to the system while it was
off. If this new HW isn't detected and drivers installed to make the HW work
during startup, then the user may not be able to enter their credentials and log
into the machine. For a given user, this may be a very rare or never encountered
event. For a population of 100s of millions of users, this can happen frequently
enough to warrant having mechanisms to support it. In Windows 7, we will support
this scenario and many others with fewer auto start services because more
comprehensive service trigger mechanisms have been created.
In terms of reading files from the disk, Windows 7 has improvements in the
'prefetching' logic and mechanisms. Prefetching was introduced way back in
Windows XP. Since today's disks have differing performance characteristics, the
scheduling logic has undergone some changes to keep pace and stay efficient. As
an example, we are evaluating the prefetcher on today's solid state storage
devices, going so far as to question if is required at all. Ultimately, analysis
and performance metrics captured on an individual system will dynamically
determine the extent to which we utilize the prefetcher.
|
|
Add your comment (free registrationrequired)
Short overview of recent news articles |
Mar,28 2024 Intel's Battle Has Just Begun Mar,27 2024 Unreal Physics is a new free game on Steam Mar,27 2024 Is The World's Cheapest Hardware Wallet SafePal S1 Worth It? Mar,27 2024 Yes, this was a Bad Idea (Emergency Wall-Mounted PC Build) Mar,27 2024 11 Cool Command Line Programs You Need to See Mar,26 2024 When you Accidentally Compromise every CPU on Earth Mar,24 2024 Everyone Who Tried This Has FAILED - Khadas Mind Modular PC Mar,24 2024 Air Cooling is Dead Mar,24 2024 US Justice Dept. Sues Apple for Monopolistic Behavior in Smartphones Mar,24 2024 Beetlejuice Beetlejuice - Official Teaser Trailer (2024) Michael Mar,22 2024 Alien: Romulus | Teaser Trailer Mar,22 2024 NVIDIA Is On a Different Planet Mar,21 2024 Everyone Needs This and it's Under $10 - Handy Tech Under $100 Mar,21 2024 20 COOL GADGETS FOR 2024 Mar,21 2024 Nvidia's 5090 Is Built From WHAT?! Mar,20 2024 Parasyte: The Grey | Official Trailer | Netflix Mar,20 2024 Fastest m.2 on Planet EARTH | Crucial T705 Nvme Review Mar,20 2024 LG's new 480Hz OLED dual-mode monitor Mar,19 2024 First 9.1 GHz CPU (overclocked 14900KS) Mar,18 2024 Haley Messick - Saatisfaction @bennybenassi - In10sive Mastercamp Mar,18 2024 1000W CPU: The Most Powerful Desktop Processor Mar,18 2024 Expands Snapdragon 8 Series to Cover More Price Points Mar,17 2024 Train Vs Lamborghini Mar,16 2024 Don't use a Microsoft Account! Mar,16 2024 This Ghillie Made from MIRRORS is SHOCKINGLY GOOD Mar,16 2024 How Hackers Deliver Malware to Hack you using Social Media Mar,15 2024 Call of Duty: Warzone Mobile - Launch Trailer Mar,14 2024 Intel's 4th Attempt At Beating Ryzen - "New" 6.2GHz Core Mar,14 2024 Asus Goes Big with Zenfone 11 Ultra Mar,14 2024 House Passes Bill to Force Sale of TikTok Mar,14 2024 Motorola Brings More Affordable 5G Phones to its 2024 Lineup Mar,14 2024 Capristan Swim - Miami Swim Week | Art Basel Miami Mar,11 2024 The Most Stunning All SSD NAS Ever? Inside QNAP's All-SSD Mar,11 2024 M2 vs M3 MacBook Air - ULTIMATE Comparison! Mar,11 2024 Risky PC Experiment: Direct CPU Water-Cooling! Can It Survive? Mar,11 2024 SpaceX Falcon 9 rocket launches 23 Starlink satellites from Mar,10 2024 I tried the Cheapest Arduino Alternative (that Nobody heard of) Mar,10 2024 This is the WEIRDEST PC I've ever seen. Mar,10 2024 Nvidia Retires GTX 16 Series, GDDR7 Arrives, FSR Upscaling Going AI? Mar,09 2024 The New BIOS Hack That Bypasses Every Antivirus
>> News Archive <<
| |
|