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c.f. bug 424647
List Archive: gentoo-user-fr
Lists: gentoo-user-fr: < Prev By Thread Next > < Prev By Date Next >
To: gentoo-user-fr@g.o
From: youshe <youshe.jaalon@...>
Subject: Re: Lenteurs diverses sur le systeme
Date: Sun, 20 Apr 2008 10:56:42 +0200
> Au niveau des performances du disque dur, ça donne quoi ? DMA est bien
> activé ?
> A tester avec hdparm.
> Bon courage
> Jérôme

Bonjour et merci, 

Je ne connais pas hdparm mais j'ai testé les commandes suivantes : 
(Lecture sur disque)
# hdparm -t /dev/sda

 Timing buffered disk reads:  118 MB in  3.05 seconds =  38.73 MB/sec
(Lecture sur cache)
# hdparm -T /dev/sda

 Timing cached reads:   2122 MB in  2.00 seconds = 1062.20 MB/sec
(flag d'utilisation DMA)
# hdparm -d /dev/sda

 HDIO_GET_DMA failed: Inappropriate ioctl for device

Je pense que les informations suivantes peuvent peut être être intéressantes ? : 

# hdparm -I /dev/sda


ATA device, with non-removable media
        Model Number:       FUJITSU MHV2080BH PL                    
        Serial Number:      NW99T6729MWJ
        Firmware Revision:  00000029
        Used: ATA/ATAPI-7 T13 1532D revision 4a 
        Supported: 7 6 5 4 & some of 8
        Logical         max     current
        cylinders       16383   16383
        heads           16      16
        sectors/track   63      63
        CHS current addressable sectors:   16514064
        LBA    user addressable sectors:  156301488
        LBA48  user addressable sectors:  156301488
        device size with M = 1024*1024:       76319 MBytes
        device size with M = 1000*1000:       80026 MBytes (80 GB)
        LBA, IORDY(can be disabled)
        Queue depth: 32
        Standby timer values: spec'd by Standard, no device specific minimum
        R/W multiple sector transfer: Max = 16  Current = 16
        Advanced power management level: 128
        Recommended acoustic management value: 254, current value: 254
        DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 *udma5 
             Cycle time: min=120ns recommended=120ns
        PIO: pio0 pio1 pio2 pio3 pio4 
             Cycle time: no flow control=240ns  IORDY flow control=120ns
        Enabled Supported:
           *    SMART feature set
                Security Mode feature set
           *    Power Management feature set
           *    Write cache
           *    Look-ahead
           *    Host Protected Area feature set
           *    WRITE_BUFFER command
           *    READ_BUFFER command
           *    DOWNLOAD_MICROCODE
           *    Advanced Power Management feature set
                SET_MAX security extension
           *    Automatic Acoustic Management feature set
           *    48-bit Address feature set
           *    Device Configuration Overlay feature set
           *    Mandatory FLUSH_CACHE
           *    FLUSH_CACHE_EXT
           *    SMART error logging
           *    SMART self-test
           *    General Purpose Logging feature set
           *    WRITE_{DMA|MULTIPLE}_FUA_EXT
           *    IDLE_IMMEDIATE with UNLOAD
                Disable Data Transfer After Error Detection
           *    SATA-I signaling speed (1.5Gb/s)
           *    Native Command Queueing (NCQ)
           *    Host-initiated interface power management
           *    Phy event counters
                DMA Setup Auto-Activate optimization
                Device-initiated interface power management
           *    Software settings preservation
           *    SMART Command Transport (SCT) feature set
           *    SCT LBA Segment Access (AC2)
           *    SCT Error Recovery Control (AC3)
           *    SCT Features Control (AC4)
           *    SCT Data Tables (AC5)
        Master password revision code = 65534
        not     enabled
        not     locked
        not     expired: security count
        not     supported: enhanced erase
        80min for SECURITY ERASE UNIT. 
Checksum: correct

Quelque chose vous parait il suspect ?

Merci pour votre aide, 

gentoo-user-fr@g.o mailing list

Lenteurs diverses sur le systeme
-- youshe
Re: Lenteurs diverses sur le systeme
-- Jérôme GROVEN
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Updated Jun 17, 2009

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