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现在显示是 Mem: 3786288k total 完全没有 4g, 就算一部分内存划到显卡
但我查看了 lspci -v -s 00:02.0
00:02.0 VGA compatible controller: Cirrus Logic GD 5446 (prog-if 00 [VGA controller])
Subsystem: XenSource, Inc. Device 0001
Flags: bus master, fast devsel, latency 0
Memory at f0000000 (32-bit, prefetchable) [size=32M]
Memory at f3000000 (32-bit, non-prefetchable) [size=4K]
Expansion ROM at <unassigned> [disabled]
Kernel modules: cirrusfb
好像也没有这么多呀
但我查看了 lspci -v -s 00:02.0
00:02.0 VGA compatible controller: Cirrus Logic GD 5446 (prog-if 00 [VGA controller])
Subsystem: XenSource, Inc. Device 0001
Flags: bus master, fast devsel, latency 0
Memory at f0000000 (32-bit, prefetchable) [size=32M]
Memory at f3000000 (32-bit, non-prefetchable) [size=4K]
Expansion ROM at <unassigned> [disabled]
Kernel modules: cirrusfb
好像也没有这么多呀
10 replies • 2015-10-15 13:08:06 +08:00
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1
wy315700 Oct 15, 2015 via Android
是不是 32 位的系统
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2
venster Oct 15, 2015
似乎大概可能，阿里云的 4G 就是 4000 000 000B
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3
coolwind Oct 15, 2015
好像是少点，不过也没少多少，无所谓了
cat /proc/meminfo MemTotal: 3921472 kB |
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4
wsy2220 Oct 15, 2015
内核会占一点内存，真实内存大小用 dmesg 看
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5
jjx OP |
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6
wy315700 Oct 15, 2015  1
[ 0.000000] Reserving 161MB of memory at 704MB for crashkernel (System RAM: 8191MB)
@jjx 应该有这样一行的。。我是 centos 7 |
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7
jjx OP @wy315700
谢谢, ubuntu 大概是这行了 [ 0.000000] Memory: 4030844k/4456448k available (6595k kernel code, 262596k absent, 163008k reserved, 6611k data, 924k init) |
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9
Gonster Oct 15, 2015 via iPhone
原来是这样啊，我一直奇怪我用的几台 centos 的服务器内存显示的总是小一点_(:з」∠)_
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