Performance issues in 5.3-RELEASE.

From: Krzysztof Kowalik (kkowalik_at_uci.agh.edu.pl)
Date: 11/17/04

  • Next message: Lukas Ertl: "5.3-STABLE frozen on heavy network load" 
    Date: Wed, 17 Nov 2004 10:40:23 +0100
To: freebsd-stable@freebsd.org

    Hello,

       Recently I took some time to upgrade my home 4.9 system to
    5.3-RELEASE (fortunately, taking full system dump before, so I can
    easily get back). In fact just after upgrading I ran into the weird
    issue during installation for firefox port.

    When firefox-1.0-source.tar.bz2 is getting untared, the system starts to
    be *slow*: any music starts to be jittered and the cursor in X stalls
    from time to time for ~1 second.

    And I never had this issue before with 4.x serie.

    I tried to boot with an without ACPI, with GENERIC kernel, with my "own"
    kernel configuration (GENERIC with removed unused SCSI/RAID/NIC drivers)
    both with and without PREEMPTION[1]. Without any visible change in system's
    behaviour.

    %uname -a
    FreeBSD bzzzt.borys.lan 5.3-RELEASE FreeBSD 5.3-RELEASE #2: Wed Nov 17
    00:19:56 CET 2004 root@bzzzt.borys.lan:/usr/src/sys/i386/compile/BZZZT i386

    # atacontrol list
    ATA channel 0:
        Master: ad0 <SAMSUNG SP1614N/TM100-24> ATA/ATAPI revision 7
        Slave: ad1 <WDC WD2000JB-00FUA0/15.05R15> ATA/ATAPI revision 6
    ATA channel 1:
        Master: acd0 <JLMS DVD-ROM LTD-166S/DS08> ATA/ATAPI revision 5
        Slave: acd1 <LITE-ON LTR-40125S/ZS0N> ATA/ATAPI revision 0
    ATA channel 2:
        Master: ad4 <ST360021A/3.10> ATA/ATAPI revision 5
        Slave: ad5 <ST380021A/3.19> ATA/ATAPI revision 5
    ATA channel 3:
        Master: no device present
        Slave: no device present

    # atacontrol mode 0
    Master = UDMA100
    Slave = UDMA100
    # atacontrol mode 1
    Master = UDMA33
    Slave = UDMA33
    # atacontrol mode 2
    Master = UDMA100
    Slave = UDMA100

    dmesgs from ACPI boot on "custom" kernel attached.

    Is there anything I missed and therefore I should try/tune or any
    other informations that are needed and I missed them?

    [1] yes, SCHED_4BSD

    Regards,
    Krzysztof Kowalik 

    -- 
As a computer, I find your faith in technology amusing.

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