kuroの覚え書き

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SanDisk Cruzer Fit (USBメモリ)

SDカードを極少USBリーダーに入れてデータディスクとして使っていたが、他用途でSDカードが必要となったので
そちらに回してしまった。
代わりにMacのデータディスクとしてSanDiskUSBメモリを買ってみたのだが・・・

Results	8.82	
	System Info		
		Xbench Version		1.3
		System Version		10.6.8 (10K549)
		Physical RAM		2048 MB
		Model		MacBookAir3,1
		Drive Type		SanDisk Cruzer Fit
	Disk Test	8.82	
		Sequential	14.83	
			Uncached Write	11.67	7.17 MB/sec [4K blocks]
			Uncached Write	8.86	5.01 MB/sec [256K blocks]
			Uncached Read	19.28	5.64 MB/sec [4K blocks]
			Uncached Read	51.69	25.98 MB/sec [256K blocks]
		Random	6.27	
			Uncached Write	8.60	0.91 MB/sec [4K blocks]
			Uncached Write	1.95	0.63 MB/sec [256K blocks]
			Uncached Read	606.90	4.30 MB/sec [4K blocks]
			Uncached Read	133.39	24.75 MB/sec [256K blocks]

うわ、遅!こりゃ失敗だったな。

ちなみにClass10 UHS-I対応のSDカードだと

Results	22.58	
	System Info		
		Xbench Version		1.3
		System Version		10.6.8 (10K549)
		Physical RAM		2048 MB
		Model		MacBookAir3,1
		Drive Type		Generic- SD/MMC
	Disk Test	22.58	
		Sequential	20.70	
			Uncached Write	19.77	12.14 MB/sec [4K blocks]
			Uncached Write	18.96	10.73 MB/sec [256K blocks]
			Uncached Read	15.57	4.56 MB/sec [4K blocks]
			Uncached Read	38.95	19.58 MB/sec [256K blocks]
		Random	24.83	
			Uncached Write	8.50	0.90 MB/sec [4K blocks]
			Uncached Write	47.68	15.26 MB/sec [256K blocks]
			Uncached Read	510.40	3.62 MB/sec [4K blocks]
			Uncached Read	48.77	9.05 MB/sec [256K blocks]