這篇文章主要講解了“centos和rhel性能的差別”,文中的講解內(nèi)容簡(jiǎn)單清晰,易于學(xué)習(xí)與理解,下面請(qǐng)大家跟著小編的思路慢慢深入,一起來(lái)研究和學(xué)習(xí)“centos和rhel性能的差別”吧!
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貌似發(fā)現(xiàn)了centos和rhel性能差別之謎,其中一個(gè)關(guān)鍵的信息可以從識(shí)別的內(nèi)存中看出,具體信息如下,雖然版本不一樣,湊合著用。
應(yīng)該來(lái)說(shuō),rhel在編譯的過(guò)程中,肯定更改了某些參數(shù),做了某些性能調(diào)優(yōu),所以相比較而言,rhel的性能會(huì)比centos的更好。
rhel 6.3 x64 內(nèi)存信息:
[root@localhost ~]# cat /proc/meminfo
MemTotal: 641656 kB
MemFree: 89576 kB
Buffers: 24124 kB
Cached: 238436 kB
SwapCached: 0 kB
Active: 131232 kB
Inactive: 292792 kB
Active(anon): 71952 kB
Inactive(anon): 92424 kB
Active(file): 59280 kB
Inactive(file): 200368 kB
Unevictable: 0 kB
Mlocked: 0 kB
SwapTotal: 1835000 kB
SwapFree: 1835000 kB
Dirty: 0 kB
Writeback: 0 kB
AnonPages: 161392 kB
Mapped: 61456 kB
Shmem: 2948 kB
Slab: 74436 kB
SReclaimable: 19328 kB
SUnreclaim: 55108 kB
KernelStack: 2208 kB
PageTables: 28016 kB
NFS_Unstable: 0 kB
Bounce: 0 kB
WritebackTmp: 0 kB
CommitLimit: 2155828 kB
Committed_AS: 553804 kB
VmallocTotal: 34359738367 kB
VmallocUsed: 24116 kB
VmallocChunk: 34359694324 kB
HardwareCorrupted: 0 kB
AnonHugePages: 45056 kB
HugePages_Total: 0
HugePages_Free: 0
HugePages_Rsvd: 0
HugePages_Surp: 0
Hugepagesize: 2048 kB
DirectMap4k: 8128 kB
DirectMap2M: 923648 kB
centos 6.5 x64 內(nèi)存信息
[root@localhost ~]# cat /proc/meminfo
MemTotal: 882968 kB
MemFree: 221896 kB
Buffers: 72548 kB
Cached: 172604 kB
SwapCached: 4248 kB
Active: 207404 kB
Inactive: 286880 kB
Active(anon): 97400 kB
Inactive(anon): 157904 kB
Active(file): 110004 kB
Inactive(file): 128976 kB
Unevictable: 0 kB
Mlocked: 0 kB
SwapTotal: 1675256 kB
SwapFree: 1649688 kB
Dirty: 52 kB
Writeback: 0 kB
AnonPages: 245544 kB
Mapped: 32704 kB
Shmem: 6172 kB
Slab: 117964 kB
SReclaimable: 56276 kB
SUnreclaim: 61688 kB
KernelStack: 2272 kB
PageTables: 28444 kB
NFS_Unstable: 0 kB
Bounce: 0 kB
WritebackTmp: 0 kB
CommitLimit: 2116740 kB
Committed_AS: 943316 kB
VmallocTotal: 34359738367 kB
VmallocUsed: 24084 kB
VmallocChunk: 34359697400 kB
HardwareCorrupted: 0 kB
AnonHugePages: 83968 kB
HugePages_Total: 0
HugePages_Free: 0
HugePages_Rsvd: 0
HugePages_Surp: 0
Hugepagesize: 2048 kB
DirectMap4k: 8128 kB
DirectMap2M: 903168 kB
感謝各位的閱讀,以上就是“centos和rhel性能的差別”的內(nèi)容了,經(jīng)過(guò)本文的學(xué)習(xí)后,相信大家對(duì)centos和rhel性能的差別這一問(wèn)題有了更深刻的體會(huì),具體使用情況還需要大家實(shí)踐驗(yàn)證。這里是創(chuàng)新互聯(lián),小編將為大家推送更多相關(guān)知識(shí)點(diǎn)的文章,歡迎關(guān)注!