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Страници по тази тема: 1 | 2 | 3 | >> (покажи всички)
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Тема
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 Сори за тъпия въпрос, ама защо яде толкоз РАМ
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| Автор |
aтaнacшиниkoв (инцидентен) |
| Публикувано | 09.01.07 23:48 |
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Тоз линукс?
Пиша free -m и виждам следното:
free -m
total used free shared buffers cached
Mem: 504 499 4 0 20 204
-/+ buffers/cache: 274 229
Swap: 0 0 0
И така през цялото време, един браузер да отворя, и компът започва да бучи, все едно излита. Е 512 РАМ е това, нали за ГНОМ или КДЕ стигало 128, какво е това чудо? Трябва ли да си правя суап партишън задължително? Имам чувството, че и един ГБ РАМ да му сложа, пак ще я изяде. От Ksysguard като му килна очевидно излишните ми за момента процеси, пак същата работа. Промяна няма голяма.
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Ядрото на Linux смята, че няма причина паметта да стои свободна и си взима от нея без да се притеснява
Вече като на някоя програма й потрябва - намаля кешта и й дава колкото иска.
А това за браузъра е странно. В момента ти пиша от лаптоп с Debian, на който: total used free shared buffers cached
Mem: 451340 396696 54644 0 39144 183144
-/+ buffers/cache: 174408 276932
Swap: 506036 0 506036
... и нямам ядове, всичко е поносимо бързо. Я виж какво дава hdparm -tT /dev/hda и харесва ли ти ...
I like work. It fascinates me. I can sit and look at it for hours.Редактирано от Masklin на 10.01.07 00:00.
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А, ок, щом принципът е такъв да ми пълни РАМа догоре...
иначе аутпута от командите е такъв:
debian:~# hdparm -T /dev/hda
/dev/hda:
Timing cached reads: 248 MB in 2.00 seconds = 124.00 MB/sec
debian:~# hdparm -t /dev/hda
/dev/hda:
Timing buffered disk reads: 58 MB in 3.05 seconds = 19.02 MB/sec
Квото и да значи това, което аз като прословутия многословно обговорен и пре-дефиниран "среден юзър" все още не знам, въпреки че сам си търкалям дебиана...
Мерси,
А.
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с изключен swap. Firefox запалва за 10-на сек:jumbo:~# hdparm -tT /dev/hda1
jumbo:~# free
total used free shared buffers cached
Mem: 451340 341304 110036 0 38700 165476
-/+ buffers/cache: 137128 314212
Swap: 0 0 0
jumbo:~# hdparm -tT /dev/hda
/dev/hda:
Timing cached reads: 432 MB in 2.02 seconds = 214.14 MB/sec
Timing buffered disk reads: 94 MB in 3.04 seconds = 30.97 MB/sec
I like work. It fascinates me. I can sit and look at it for hours.
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localhost ~ # free -m
total used free shared buffers cached
Mem: 881 225 655 0 8 70
-/+ buffers/cache: 146 734
Swap: 980 0 980
localhost ~ # hdparm -tT /dev/hda
/dev/hda:
Timing cached reads: 2156 MB in 2.00 seconds = 1076.59 MB/sec
Timing buffered disk reads: 102 MB in 3.01 seconds = 33.87 MB/sec
localhost ~ #
Линукса е Gentoo, а лаптопа - MSI
Bеer? Mоre?
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sl ~ # hdparm -Tt /dev/md0
/dev/md0:
Timing cached reads: 3684 MB in 2.00 seconds = 1844.03 MB/sec
Timing buffered disk reads: 294 MB in 3.01 seconds = 97.72 MB/sec
sl ~ # free -m
total used free shared buffers cached
Mem: 1003 693 309 0 63 292
-/+ buffers/cache: 338 665
Swap: 494 0 494
sl ~ # mdadm -D /dev/md0
/dev/md0:
Version : 00.90.03
Creation Time : Thu Jul 21 03:16:51 2005
Raid Level : raid5
Array Size : 1172126208 (1117.83 GiB 1200.26 GB)
Device Size : 390708736 (372.61 GiB 400.09 GB)
Raid Devices : 4
Total Devices : 4
Preferred Minor : 0
Persistence : Superblock is persistent
Update Time : Wed Jan 10 11:32:18 2007
State : clean
Active Devices : 4
Working Devices : 4
Failed Devices : 0
Spare Devices : 0
Layout : left-symmetric
Chunk Size : 128K
UUID : 1c6b3d09:c5703e24:bc561aad:ae677e8c
Events : 0.8083684
Number Major Minor RaidDevice State
0 88 1 0 active sync /dev/hdm1
1 89 1 1 active sync /dev/hdo1
2 90 1 2 active sync /dev/hdq1
3 91 1 3 active sync /dev/hds1
sl ~ # hdparm -I /dev/hdm
/dev/hdm:
ATA device, with non-removable media
powers-up in standby; SET FEATURES subcmd spins-up.
Model Number: HDS724040KLAT80
Serial Number: KRFA06RAG9P36C
Firmware Revision: KFAOA32A
Standards:
Used: ATA/ATAPI-7 T13 1532D revision 1
Supported: 7 6 5 4
Configuration:
Logical max current
cylinders 16383 65535
heads 16 1
sectors/track 63 63
--
CHS current addressable sectors: 4128705
LBA user addressable sectors: 268435455
LBA48 user addressable sectors: 781422768
device size with M = 1024*1024: 381554 MBytes
device size with M = 1000*1000: 400088 MBytes (400 GB)
Capabilities:
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: unknown setting (0x0000)
Recommended acoustic management value: 128, current value: 254
DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 *udma5 udma6
Cycle time: min=120ns recommended=120ns
PIO: pio0 pio1 pio2 pio3 pio4
Cycle time: no flow control=240ns IORDY flow control=120ns
Commands/features:
Enabled Supported:
* SMART feature set
Security Mode feature set
* Power Management feature set
* Write cache
* Look-ahead
* Release interrupt
* Host Protected Area feature set
* WRITE_BUFFER command
* READ_BUFFER command
* NOP cmd
* DOWNLOAD_MICROCODE
* READ/WRITE_DMA_QUEUED
Advanced Power Management feature set
Power-Up In Standby feature set
SET_FEATURES required to spinup after power up
Address Offset Reserved Area Boot
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
Media Card Pass-Through
* General Purpose Logging feature set
* 64-bit World wide name
* URG for READ_STREAM[_DMA]_EXT
* URG for WRITE_STREAM[_DMA]_EXT
Security:
Master password revision code = 65534
supported
not enabled
not locked
not frozen
not expired: security count
not supported: enhanced erase
220min for SECURITY ERASE UNIT.
HW reset results:
CBLID- above Vih
Device num = 0 determined by the jumper
Checksum: correct
sl ~ # cat /proc/cpuinfo | egrep 'processor|model name|cpu MHz|cache size'
processor : 0
model name : Intel(R) Pentium(R) 4 CPU 3.00GHz
cpu MHz : 3000.575
cache size : 1024 KB
processor : 1
model name : Intel(R) Pentium(R) 4 CPU 3.00GHz
cpu MHz : 3000.575
cache size : 1024 KB
sl ~ # lspci
00:00.0 Host bridge: Intel Corporation 915G/P/GV/GL/PL/910GL Processor to I/O Controller (rev 04)
00:01.0 PCI bridge: Intel Corporation 915G/P/GV/GL/PL/910GL PCI Express Root Port (rev 04)
00:02.0 VGA compatible controller: Intel Corporation 82915G/GV/910GL Express Chipset Family Graphics Controller (rev 04)
00:1c.0 PCI bridge: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) PCI Express Port 1 (rev 03)
00:1c.1 PCI bridge: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) PCI Express Port 2 (rev 03)
00:1c.2 PCI bridge: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) PCI Express Port 3 (rev 03)
00:1c.3 PCI bridge: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) PCI Express Port 4 (rev 03)
00:1d.0 USB Controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #1 (rev 03)
00:1d.1 USB Controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #2 (rev 03)
00:1d.2 USB Controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #3 (rev 03)
00:1d.3 USB Controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #4 (rev 03)
00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev d3)
00:1f.0 ISA bridge: Intel Corporation 82801FB/FR (ICH6/ICH6R) LPC Interface Bridge (rev 03)
00:1f.1 IDE interface: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) IDE Controller (rev 03)
00:1f.2 IDE interface: Intel Corporation 82801FB/FW (ICH6/ICH6W) SATA Controller (rev 03)
00:1f.3 SMBus: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) SMBus Controller (rev 03)
06:00.0 RAID bus controller: Triones Technologies, Inc. HPT374 (rev 07)
06:00.1 RAID bus controller: Triones Technologies, Inc. HPT374 (rev 07)
06:02.0 RAID bus controller: Triones Technologies, Inc. HPT374 (rev 07)
06:02.1 RAID bus controller: Triones Technologies, Inc. HPT374 (rev 07)
06:08.0 Ethernet controller: Intel Corporation 82562ET/EZ/GT/GZ - PRO/100 VE (LOM) Ethernet Controller (rev 01)
;-)
Редактирано от C.Capъeв на 10.01.07 11:10.
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пак "айде да си ги премерим"
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И така да е, пак е по-добре от другите теми, но щеше да е по-добре да се дадат характеристиките на състемите, за да може 4овек да сравни със своите. Ето например моите:
/dev/sda:
Timing cached reads: 428 MB in 2.01 seconds = 213.43 MB/sec
Timing buffered disk reads: 146 MB in 3.08 seconds = 47.45 MB/sec
а компа е Sempron 2,4+, дъно 748K7AA (чипсет sys964) и хард Exelstore 80G SATA, но не помня модела, а не се сщам коя програма може да ми го "изпее". Вярно е, че компа е тип "секретарка", но за толкова пари - толкова, и все пак ми се струват слаби резултатите. Какво е мнението на по-разбиращите ?
Edit:Ето какво каза hdparm по въпроса:
sempron:/mnt/gentoo# hdparm -i /dev/sda
/dev/sda:
HDIO_GET_IDENTITY failed: Inappropriate ioctl for device
sempron:/mnt/gentoo# hdparm -I /dev/sda
/dev/sda:
ATA device, with non-removable media
Model Number: Excelstor Technology J880S
Serial Number: PFDB30K2B087TB
Firmware Revision: PF2OA60A
Standards:
Used: ATA/ATAPI-7 T13 1532D revision 1
Supported: 7 6 5 4
Configuration:
Logical max current
cylinders 16383 16383
heads 16 16
sectors/track 63 63
--
CHS current addressable sectors: 16514064
LBA user addressable sectors: 160836480
LBA48 user addressable sectors: 160836480
device size with M = 1024*1024: 78533 MBytes
device size with M = 1000*1000: 82348 MBytes (82 GB)
Capabilities:
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: unknown setting (0x0000)
Recommended acoustic management value: 128, current value: 254
DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 udma5 *udma6
Cycle time: min=120ns recommended=120ns
PIO: pio0 pio1 pio2 pio3 pio4
Cycle time: no flow control=240ns IORDY flow control=120ns
Commands/features:
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
Power-Up In Standby feature set
SET_FEATURES required to spinup after power up
Address Offset Reserved Area Boot
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
Media Card Pass-Through
* General Purpose Logging feature set
* WRITE_{DMA|MULTIPLE}_FUA_EXT
* 64-bit World wide name
* URG for READ_STREAM[_DMA]_EXT
* URG for WRITE_STREAM[_DMA]_EXT
* SATA-I signaling speed (1.5Gb/s)
* Native Command Queueing (NCQ)
* Host-initiated interface power management
Non-Zero buffer offsets in DMA Setup FIS
DMA Setup Auto-Activate optimization
Device-initiated interface power management
In-order data delivery
* Software settings preservation
Security:
Master password revision code = 65534
supported
not enabled
not locked
not frozen
not expired: security count
not supported: enhanced erase
44min for SECURITY ERASE UNIT.
Checksum: correct
Още малко толерантност никога не е излишна Редактирано от мeтълДжyмa на 10.01.07 11:01.
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с тая идея постнах, но не ми се стори удобно да казвм директно "мойта е по-голяма" :)
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да покажа, че машината ми не е нищо особено обаче пак работи сносно.
Изглежда компютъра на автора на темата е най-бавния, затова и бавно тръгват нещата му. Все пак е добре да се видят конкретни замервания ... може да е наред, а може и да не е.
I like work. It fascinates me. I can sit and look at it for hours.
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Страници по тази тема: 1 | 2 | 3 | >> (покажи всички)
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