7231的64M 内存到底有没有用

sur***

使用过程中发现开动MLDONKEY后开始下载 内存就占用到90%以上  关闭ML后 感觉内存没有办法释放一直还是90%多 除非把机器从启动 才可以清内存. 其它使用7231的是否有这个情况.

hli***

这是linux的cache特性，无需担心，当你需要内存时，它马上就会释放出足够的内存

scu***

嗯，linux和windows是不同的。
譬如，你是用一个命令， ls， linux运行一次，是先从硬盘调入内存，，然后运行，再次运行ls，命令是直接从内存调用。节省了从硬盘调入内存的时间。

当内存不够用的时候，譬如运行一个大程序，空闲内存不足时，才会释放最不常用的那些占用的内存。

min***

那32M的呢？会是一个什么样的状况呢

sur***

linux应该是有这样的功能 问题是7231 算是个完整的LINUX吗 我看内核好象是很老的版本

scu***

http://www.kernel.org/pub/linux/kernel/v2.4/

http://www.kernel.org/pub/linux/kernel/v2.4/ChangeLog-2.4.35
final:
- v2.4.34 was released as 2.4.35 with no changes.

Summary of changes from v2.4.35-pre5 to v2.4.35-rc1
============================================

Filippo Carletti (2):
      2.4.34 - VIA VT8237A support
      Add some AHCI PCI IDs

Krzysztof Strasburger (1):
      notsc support for x86_64

Lior Dotan (1):
      Fix divide by 0 in vegas_cong_avoid()

PaX Team (1):
      random device reseed bugfix, possibly security problem

Vincent Bernat (1):
      SATA update: add ICH8 PCI IDs

Willy Tarreau (2):
      Documentations/SubmittingPatches was outdated
      Change VERSION to 2.4.35-rc1

Summary of changes from v2.4.35-pre4 to v2.4.35-pre5
============================================

Brian Maly (1):
      fix 'pc_keyb: controller jammed (0xA7)' error on systems with KVM

Willy Tarreau (7):
      do not mark init_idle() __init
      Bluetooth: correct fix for CVE-2007-1353
      [BACKPORT] Bluetooth: Fix NULL pointer dereference in HCI line discipline
      [BACKPORT] Bluetooth: Fix unintentional fall-through in HCI line discipline
      lvm: update to latest fixes from the LVM package
      lvm: do not update extent count if snapshot allocation fails
      Change VERSION to 2.4.35-pre5

Summary of changes from v2.4.35-pre3 to v2.4.35-pre4
============================================

Urs Thermann (1):
      recent patch to fib_semantics broke build

Willy Tarreau (1):
      Change VERSION to 2.4.35-pre4

Summary of changes from v2.4.35-pre2 to v2.4.35-pre3
============================================

Adrian Bunk (1):
      init/main.c: remove comment that gcc 4 was not supported

Alexey Korolev (1):
      Linux 2.4.x MTD CFI P30/P33 support

Tal Kelrich (2):
      2.6 backport of Watchdog wdt83627 (Winbond W83627HF/F/HG/G) driver
      Watchdog w83977ef (Winbond W83977EF) driver

Willy Tarreau (6):
      [DECNet] fib: Fix out of bound access of dn_fib_props[]
      [IPv4] fib: Fix out of bound access of fib_props[]
      [PPP]: Don't leak an sk_buff on interface destruction.
      Fix TCP receiver side SWS handling
      [Bluetooth] Fix L2CAP and HCI setsockopt() information leaks (CVE-2007-1353)
      Change VERSION to v2.4.35-pre3

Summary of changes from v2.4.35-pre1 to v2.4.35-pre2
============================================

Andrzej Stypula (2):
      fix channel balance on TV cards with LG head
      fix build of serial with DEBUG enabled

Gilles Espinasse (2):
      usb-storage: backport unusual_devs from 2.6.20
      usb-storage: HP-FDC-GOLD need US_FL_SINGLE_LUN

Krzysztof Strasburger (3):
      make it possible to compile x86_64 without VT support
      add nforce-MCP55 chipset ID
      restore ability to set disk geometry on command line

Mariusz Kozlowski (24):
      arm: dma-arc add missing parenthesis
      add missing parenthesis in pci-v320usc
      amijoy joystick parenthesis fix
      rio parenthesis fix
      serial_amba parenthesis fix
      ide legacy hd parenthesis fix
      ide serverworks parenthesis fix
      message fusion parenthesis fix
      net wavelan parenthesis fix
      scsi 53c7,8xx parenthesis fix
      scsi 53c7xx parenthesis fix
      scsi aic7xxx parenthesis fix
      video pm3fb parenthesis fix
      video sis parenthesis fix
      fs ufs macro parenthesis fix
      arm sa1100 parenthesis fix
      mips/mips64 mv64340 parenthesis fixes
      mips64 klconfig parenthesis fix
      parisc pdc parenthesis fix
      ppc m48t35 parenthesis fix
      ppc ppc4xx_dma parenthesis fix
      sparc64 dma parenthesis fixes
      byteorder swab parenthesis fix
      reiserfs parenthesis fix

Pete Zaitcev (1):
      usb 2.4: Support high-speed HID

Willy Tarreau (6):
      ia64 kernel entry fix
      add missing parenthesis in video/cyberfb
      fix missing parenthesis in unused macro in ip_nat_standalone
      remove excess parenthesis in video/cyberfb
      IPV6: ipv6_fl_socklist is inadvertently shared.
      Change VERSION to v2.4.35-pre2

Summary of changes from v2.4.34 to v2.4.35-pre1
============================================

Christian Praehauser (1):
      [NET] ethernet: Fix first packet goes out with MAC 00:00:00:00:00:00

dann frazier (1):
      smbfs: fix problems introduced by last security backport

Jesse Brandeburg (3):
      e1000: integrate latest 2.4 linux driver
      [MAINTAINERS]: update e1000 maintainers
      e1000: update README

Oliver Neukum (1):
      proper locking on disconnect for mdc800

Willy Tarreau (2):
      merge 2.6 backport of skge/sky2 network drivers
      Change VERSION to 2.4.35-pre1


ChangeLog-2.4.35                  26-Jul-2007 22:34  4.4K  
从时间看DDWRT V24用的 kernel 2.4.35，大概是 2007年7月时发布的。

[ 本帖最后由 scutlxb 于 2008-3-12 16:29 编辑 ]

sho***

怎么会没用,越大越好
如果是2.4的内核一点也不老，玩嵌入式要求的是稳定，你追求哪些用不上的新特性干嘛，又不是windows,像98到xp的区别

[ 本帖最后由 showboy 于 2008-3-12 18:45 编辑 ]

min***

2.4的内核不算老吧

个人只是觉得那个多语言支持皮肤等等那些功能应该去掉了，节约点Flash