Tweaking boot time (classpnp.sys?)

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  1. Posts : 15
    Windows 7 Home Premium (x64)
       #1

    Tweaking boot time (classpnp.sys?)


    I'm looking for ways to reduce my reboot time (102 seconds according to this script). I've pruned BIOS routines and startup items, which leaves the bit in the middle.

    I realise on HDDs (3 x F3s in RAID0; 6.1 WEI; 350MB/s sequentials) I'll never see the sub-60 second reboot times of SSDs, but I get the feeling Windows is dithering when it hits classpnp.sys (the last driver I see loading).

    Since \Windows\ntbtlog.txt has no time stamps I'm testing with safe mode so I can watch the drivers as they load. Everything up to classpnp has no delay, loading about 10 per second, but after this final driver there's ~35 seconds of no HDD activity before a black screen then welcome screen.

    Short of unplugging loads of hardware, is there a way I can analyse what it's doing?

    Cheers :)
      My Computer


  2. Posts : 2,528
    Windows 10 Pro x64
       #2

    Normally I wouldn't just link to a site outside of sevenforums, but this is not a shameless plug - there's a very good thread on MSFN's forums on how to use xperf to trace boot time issues (amongst other things) here that you might want to have a look at.
      My Computer


  3. Posts : 1,074
    Windows 7 Profession 64-bit
       #3

    Your computer boots in less than 2 minutes and you are complaining? Why? There's nothing wrong with 102 seconds, especially with a RAID. And besides, longer boot times are no indication of system performance once the system is booted - and that's where it counts.
      My Computer


  4. Posts : 15
    Windows 7 Home Premium (x64)
    Thread Starter
       #4

    cluberti said:
    Normally I wouldn't just link to a site outside of sevenforums, but this is not a shameless plug - there's a very good thread on MSFN's forums on how to use xperf to trace boot time issues (amongst other things) here that you might want to have a look at.
    Thanks for that, some very detailed info it spits out!

    Digerati said:
    Your computer boots in less than 2 minutes and you are complaining? Why? There's nothing wrong with 102 seconds, especially with a RAID. And besides, longer boot times are no indication of system performance once the system is booted - and that's where it counts.
    Doesn't everyone here (this section at least!) strive to get 7 running best as possible? Even when I briefly had an SSD (RealSSD 256GB - died on day 1) it was a disappointing 89 seconds, up to triple the time of some of these times.
      My Computer


  5. Posts : 2,528
    Windows 10 Pro x64
       #5

    Wow. I've got a rather "old" setup (admittedly 2x WD Raptor 10K 74GB drives for the OS) that boots in ~45 seconds, from right after the POST to usable desktop. 102 seconds is a long time, even for a single-drive system - sounds like either your filesystem isn't configured for the correct cluster size, or you have a ton of boot drivers, or services starting automatic, etc. 102 seconds isn't "bad", but it's not good either.
      My Computer


  6. Posts : 1,074
    Windows 7 Profession 64-bit
       #6

    Doesn't everyone here (this section at least!) strive to get 7 running best as possible?
    "Running" yes, but boot times is not an indication of performance! And it is immaterial once the system boots completely. And I disagree with cluberti's comment that 102 is not good. Once again you are setting up a RAID during boot and that is a big thing. Also we don't know what else you are loading at start - and that depends entirely on your specific hardware configuration. Many systems take 3 or 4 minutes or longer to fully boot and load up everything at start.

    Once again, performance after the full boot is the key factor in determining system performance. After all, most people only boot once a day, if that.
      My Computer


  7. Posts : 63
    win7
       #7

    [QUOTE=Digerati;886546]
    . Once again you are setting up a RAID during boot and that is a big thing. .

    Is the raid not in hardware, most motherboards have onboard raid these days, my raid needs nothing, its even visible from a cd boot.
      My Computer


  8. Posts : 1,074
    Windows 7 Profession 64-bit
       #8

    my raid needs nothing
    Not true! It is setup in the BIOS and is loaded every time it boots.
      My Computer


  9. Posts : 15
    Windows 7 Home Premium (x64)
    Thread Starter
       #9

    It does add 10-15s to my boot time, not much I can do about that.
      My Computer

  10.    #10

    IMHO, if it takes more than one minute to boot after POST, either something is wrong or there are too many processes running at startup. I have yet to see a system capable of running 7 that I couldn't tweak to boot in less than a minute without reducing any of it's functionality
      My Computer


 
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