广东11选5

硬盘IO性能估算入门

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广东11选5IOSHISHURUSHUCHUZHILING,CAOZUOXITONGXIANGCUNCHUKONGZHIQIXIAFAYIGEDUHUOZHEXIESHUJUDECAOZUOZHILING,KONGZHIQIXIAFADIZHIHESHUJUJICUNCHUSHEBEI,BINGFANHUIJIEGUOJICUNCHUKONGZHIQI,ZUIHOUDAODACAOZUOXITONG。CAOZUOXITONGDEYIGEIOKENENGHUICHANSHENGDUOGESHIJIDECUNCHUSHEBEIIO。YIBANKEYIFENWEI:

广东11选51、LIANXUSequential IO、SUIJIRandom IO RUGUOBENCIIOJICHUDECHUSHIDIZHIHESHANGCIIODEJIESHUDIZHISHILIANXUHUOZHEJIEJINDE,CITOUKEYIHENKUAIFANGWENDAOSHUJU,ZHEIYANGDEDUOGEIOJIUSHILIANXUIO。RUGUOQIANHOULIANGCIIOCAOZUODEDIZHIXIANGCHABIJIAODA,CITOUXUYAOJIAOZHANGJULIDEYIDONG,JIUSHISUIJIIO。ZAIZUOLIANXU IODESHIHOU,CITOUJIHUBUHUANDAOLIANJIEGONGZUO,KEYIKUAISUDUQUHEXIERUDALIANGSHUJU。

广东11选52、SHUNXUQueue IO、BINGFABurst IO RUGUOCUNCHUSHEBEIMEICIZHIZHIXINGYIGEIOZHILING,JIUSHISHUNXUIO;DANGCUNCHUSHEBEINENGTONGSHIZHIXINGDUOGEIOMINGLINGSHI,KONGZHIQIFASONGIOZHILINGHOUBUDENGHUIYINGJIUJIXUXIAFAIOZHILING,CHENGWEIBINGFAIO。PUTONGCIPANYICIZHINENGXIANGYINGYIGEIOZHILING,DANRAIDDENGCUNCHUSHEBEIDEIOCAOZUOSHIBINGFADE。DUISHUNXUIODESHEBEI,DIAOZHENGIODUILIESHENDU,XINGNENGBUNENGCHANSHENGBIANHUA。

广东11选5HENGLIANGYINGPANXINGNENG,ZUIZHIGUANDEJIUSHIIOPSHETUNTULIANG。

1、IOPS,MEIMIAOCHULIDEIOCISHU ZHICUNCHUSHEBEI(HDD、SSD、SAN)DANWEISHIJIANNEINENGCHULIDEIOQINGQIUSHULIANG,DUISUIJIDUXIEPINFANDEYINGYONG,RUOLTPSHUJUKU、TUPIAN、XINXI,SHIZUIGUANJIANDEHENGLIANGZHIBIAO。IOPSSHUZHISHOUDUXIEBILI、SUIJIIO、IODAXIAO、DUILIESHENDUDENGYINSHUYINGXIANG。SHUJUKUTONGCHANGFANGWENYIXILIEBULIANXUDESHUJU,GENJUWENJIANWULIWEIZHI,XUYAOHENDUOCIIOCAINENGWANCHENG。SUOYIXUYAOSUIJIIOGAODESHEBEI。

2、Throughput,TUNTULIANG ZHIDANWEISHIJIANNEIKEYICHENGGONGCHUANSHUDESHUJUSHULIANG,CHUANSHUBAOKUODUHEXIEDEZONGHE。DUIYUDAWENJIANHUOZHELIUMEITIDEYINGYONG,YONGYOUDALIANGSHUNXUDUXIE,ZEGENGGUANZHUSHUJUTUNTULIANG。SHUJUTUNTULIANGHAISHOUDAOCUNCHUSHEBEIJIEKOUSUDUXIANZHI,BIRUIDE、SATA、SAS、FC,SSDSHIYONGPCIE NvmeJIEKOUZUIJIA,DANTONGSHIQITUICHUDEJIEKOUDOUDAYUCUNCHUSHEBEITUNTULIANGSHANGXIAN。

TONGGUOiostatDENGGONGJUGUANCHACUNCHUSHEBEIZHUANGKUANG,WOMENYIBANGUANZHUXIAMIANZHIBIAO。

广东11选51、r/s、w/s,MEIMIAODUXIEIOCISHU。 IOPS = r/s + w/s。DUHEXIEDENENGLI,ZAIBUTONGSHEBEIZHONGSHIJISHIYOUCHAYIDE,DANSHIWOMENJINGCHANGJIANHUACHAYI,HUNHECHENGWEIIOPS。

2、avgrq-sz,MEICIIOQINGQIUDEPINGJUNDAXIAO RUGUOPINGJUNXIAOYU32KRENWEISUIJICUNQUWEIZHU,DAYU32KZESHISHUNXUCUNCHUWEIZHU。

广东11选53、avgqu-sz,DENGDAIZHIXINGDEIODUILIEZHANGDU IOQINGQIUSHUCHAOCHUCUNCHUSHEBEICHULINENGLI,DAIZHIXINGDUILIEJIUHUIJIAZHANG,GAIZHIYINGGAIXIAOYU2.

广东11选54、await,DENGDAIZHIXINGDEIOHAOSHI DENGDAIHAOSHIQUJUEsvctmYIJIIODUILIEZHANGDU,GAIZHIYINGGAIJIEJINsvctm。

广东11选55、 svctm,IOFUWUSHIJIAN CHULIIOQINGQIUDEHAOSHI,BIRUJIXIEYINGPANHAOSHI,YOUXUNDAOSHIJIAN、XUANZHUANYANCHIHECHUANSHUSHIJIANZUCHENG。

广东11选56、uitl,CUNCHUSHEBEIIOLIYONGLV CUNCHUSHEBEIDEZIYUANLIYONGQINGKUANG,DUILIEZHENGYONGCHENGDUCHENGYUEGAOZHIYUEDA。

1、JIXIEYINGPANDEXINGNENGJISUAN DUIJIXIEYINGPANLAISHUO,IOPS = 1000 / (XUNDAOSHIJIAN + XUANZHUANYANSHI + CHUANSHUSHIJIAN)。 a、XUNDAOSHIJIAN,CITOUYIDONGDAODUIYINGCIDAOSHANGDEHAOSHI。 Sata 7200RPM,PINGJUNXUNDAOSHIJIANSHI9ms。 Sas 10000RPM,PINGJUNXUNDAOSHIJIANSHI6ms。 Sas 15000RPM,PINGJUNXUNDAOSHIJIANSHI4ms。  b、XUANZHUANYANSHI,PANPIANXUANZHUANZHIXUYAODESHANQUYIZHICITOUXIAFANGHAOSHI。 PINGJUNWEICIPANXUANZHUANYIZHOUSUOXUSHIJIANDEYIBAN,60 * 1000/7200/2。 Sata 7200RPM,XUANZHUANYANSHI 60 * 1000 / 7200 / 2 = 4.17ms。 Sas 10000RPM,XUANZHUANYANSHI3ms。 Sas 15000RPM,XUANZHUANYANSHIYUE2ms。 c、CHUANSHUSHIJIAN,CHUANSHUDUXIESHUJUHAOSHI。 PINGJUNSHUJUDAXIAOCHUYIJIEKOUCHUANSHULV,HAOSHIHENXIAOCULVEJISUANKEYIHULVE。 Sata,300~600MB/s。 Sas,3Gbit/s。 FC,2~4Gbit/s。 NVME,32Gbit/s。 GENJUSHANGSHUXINXI,WOMENCHANGYONGDESas 15000RPM,MySQLYINGYONG16kKUAI,JIXIEYINGPANIOPS = 1000 / (4 + 2 + 16K / 375K) = 165。

广东11选52. SSDYINGPANIOJISUAN GUTAIYINGPANMEIYOUXUNDAOSHIJIANHEXUANZHUANSHIJIAN。IOHAOSHISHITONGGUODIZHICHAZHAOSHUJUHAOSHI,GENJUXINPIANKELISLC、MLC,ZHONGKONGXINPIAN、DUILIESHENDU32~64、JIEKOUSata、PCIEDEBUTONG,YIBANFUZAIFEITAIGAOSHISHIXIANGDUIGUDINGZHI(KONGZHIZAI60%LIYONGLV)。 IOPS = 1000 / IOHAOSHI。YINWEISSDBIJIAOGUDING,BIRUIntel 320 SSDDUI8K avgrq-szHAOSHI0.1ms,1000/0.1ms=10000 IOPS。JUTICANKAOHOUXUWENZHANG。

广东11选53、iopsGUSUANraidPANSHU a、RUGUODANPANBUNENGMANZUXINGNENGXUQIU,XUYAOTONGGUORaidSHIXIAN,JISUANSUOXUYINGPANSHUGONGSHIRUXIA。 Raid1、10,Drive IOPS = Read IOPS + 2*Write IOPS Raid3、5,Drive IOPS = Read IOPS + 4*Write IOPS Raid6,Drive IOPS = Read IOPS + 6*Write IOPS b、SHEXUYAOIOPS 5000,DUXIEBILI2:1,ZERAID10HOUIOPSXUQIUWEI。 RAID10,(2/3) * 5000 + 2 * (1/3) * 5000 = 6666 IOPS c、YIZHISas 15000RPMJIXIEYINGPANIOPS165。 5000IOPSSUOXUYINGPANGESHU, 6666 / 165 = 40。

广东11选54、CHANGJIANCUNCHUSHEBEICANKAOXINGNENG,avgrq-sz 8~16K 5400 rpm SATA,60 IOPS 7200 rpm SATA,70 IOPS 10000 rpm SAS,110 IOPS 15000 rpm SAS,150 IOPS,Sequential RW 180MB/s、Radom RW 15MB/s。 10000 rpm FC,125 IOPS 15000 rpm FC,150 IOPS SSD Sata,3000~40000 IOPS,R 400MB/s、W 250MB/s。 SSD PCIE,20000~40000 IOPS,R 500MB/s、W 300MB/s。 NEICUN,+ IOPS,30~60 GB/s。