CRC64 crc = new CRC64();
CheckedInputStream checkedInputstream = new CheckedInputStream(progressInputStream, crc);
ossObject.setObjectContent(checkedInputstream);
`
读取的时候CheckedInputStream 都会调用cksum.update(b);
`
public int read() throws IOException {
int b = in.read();
if (b != -1) {
cksum.update(b);
}
return b;
}
`
`
public int read(byte[] buf, int off, int len) throws IOException {
len = in.read(buf, off, len);
if (len != -1) {
cksum.update(buf, off, len);
}
return len;
}
方法:com.aliyun.oss.internal.OSSObjectOperation#getObject(com.aliyun.oss.model.GetObjectRequest) 在OSSObject对象的时候加入了CRC64方法,导致每次reader的时候回去出发CRC64的update `
` 读取的时候CheckedInputStream 都会调用cksum.update(b);
`
`
`
` 导致read读取文件时候CPU比不加CRC64的时候高百分之三十.
这里是不是存在问题???