Ñ.Ð. DMA ÑÐ Ð ÑÐÐÐÐÐÐÐÑÑÐÐÐ.
ÐÐÐ ÑÐ ÐÐÐÑÐÐ ÐÐ ÐÐ ÐÑÑÐÐ ÐÑÐÐÐÐ ÐÐ ÑÑÐÐ ÐÐÐÐÐÐÐÐ ÑÐ ÑÑÐÑÐÐÐ (hdparm ÐÐ ÑÐ ÐÐÐÐÐÐÐ), ÐÐ ÐÑÐ ÐÐÐÑ ÐÐ ÑÐÑÐÐÐ ÐÐÐÑÑÐÐÐÐ ÐÑÐÐÐÐ ÐÐÐÐÐÑÐÐÑÐ ÐÐÐÑÐÐÐ ÐÐ ÐÐÑÐ, ÑÐÐÐ ÐÐÐÑÐ DMA ÐÑÐÐÐÐ ÑÐ ÑÐÐÐÐÐÐÐÑÑÐÐ Ð DVD-ÑÐÑÐÑÑÑ ÐÐÑÐÐ ÐÐ ÑÐÑÐ, ÐÐ ÐÐ ÑÑÐÐ DMA, ÐÐÐÑÐ ÐÐ ÐÑÑÑÐ ÑÐÐÐÑÐ ÐÐ ÐÑÐÐÑÐÐÐÐÐÐÐÐÐÐ ÐÐ DVD video.
DVD-ÑÐÑÐÑÑÑ ÐÐ ÐÑÐÐÑÐÐ ÑÐÑÐ (ÑÐÐÐÐÑ ÑÐ ÐÐÑÐÐ Ð ÐÐ ÐÐÐÐÐÐÐÑ ÐÑ ÑÐÑÐÐ ÑÐ ÐÐÐ ÐÑÐÑÐÐ Ð ÐÑÐÐÐÐÐÐ), ÐÐ ÐÐÐ DMA ÐÐ ÑÑÐÐÐ ÐÐ ÐÐÐÐÐÐÐ ÐÐ DVDÑÐ.
ÐÐÑÐÑ ÐÐ ÐÐÐÐÐ ÐÐÐÐÐ ÐÐÑÐÑÐÐÑÐÑ
cibo:~# hdparm -I /dev/hdd
/dev/hdd:
ATAPI CD-ROM, with removable media
Model Number: TOSHIBA DVD-ROM SD-M1202
Serial Number: 3900801284
Firmware Revision: 1020
Standards:
Used: ATAPI for CD-ROMs, SFF-8020i, r2.5
Supported: CD-ROM ATAPI-2
Configuration:
DRQ response: 50us.
Packet size: 12 bytes
Capabilities:
LBA, IORDY(can be disabled)
Buffer size: 256.0kB
DMA: sdma0 sdma1 sdma2 mdma0 mdma1 *mdma2
Cycle time: min=120ns recommended=120ns
PIO: pio0 pio1 pio2 pio3 pio4
Cycle time: no flow control=120ns IORDY flow control=120nsÐÑÐÐÐÐÐ ÐÐÐÐ ÐÑÐÐÑÐÐ ÐÑÐÑÐÐ ÐÐÐÐ ÐÐ ÑÐÐÐÑÐÐÐÐÐ ÐÐÐÐÐ ÐÐ ÑÐÐÐ kernel-Ð ÑÐÐÐ ÐÐÑÐ ÑÐ ÐÐÐÑÐÐ ÐÐÐÐÐ Ñ DMA?
ÐÑÐ ÐÐÑÐ, ÐÐÐÐÑÐ ÑÐ ÐÐÐÑÐÐÐ ÐÐ ÑÐÑÐ ÐÑ DVDÑÐ Ñ ÐÐÐÑÑÐÐÐ DMA, top ÐÐÐÐÐÐÐ, 99,5% Waiting Ð CPU ÑÑÐÑÐÑÑÐÐÐÑÐ.
DVD ÑÑÑÑÐÐÑÑÐÐÑÐ ÐÐ ÐÐÑÐÐÐÐÐ ÑÑÐ ÐÐ ÐÐÐÐÐÐ ÐÐ ÐÐÑÐÐ ÐÑÐÐÐÐÐÐ ÐÐÐ Windows, ÐÐÐÐÑÐ ÐÐ ÑÐ ÐÐÐÐÑÐÑÐ ÑÐÐÑÐ (ÐÑÐÐÐ 3 ÐÐÐÐÐÐ ÐÐÑÐ-ÐÐÐÑ).
ÐÐÐÑÐ
-- Andrey Andreev University of Helsinki Dept. of Computer Science ============================================================================ A mail-list of Linux Users Group - Bulgaria (bulgarian linuxers). http://www.linux-bulgaria.org - Hosted by Internet Group Ltd. - Stara Zagora To unsubscribe: http://www.linux-bulgaria.org/public/mail_list.html ============================================================================
