Add disk cache for LINUX 115 Network Disk Client

I recently used a 115 online storage disk to download something. It was initially a 12 m optical fiber, and the data written to the disk every second was kept around 1 ms. I was so scared to upgrade to 115 m optical fiber two days ago and then open the online storage, the HDD lights on the host are constantly on. Does this product give fsync every time after receiving the buffer? The strace artifact finds that there is no fsync, that is, the cache is disabled when the file is opened.

Recently, I used a 115 online storage disk to download things. At the beginning, it was a 12 m optical fiber, and the data written to the disk per second was kept at around 1 m/s. I upgraded it to 115 m optical fiber two days ago, and then I was scared to open the online storage, the HDD lights on the host are constantly on. Does this product give fsync every time after receiving the buffer? The strace artifact finds that there is no fsync, that is, the cache is disabled when the file is opened. After looking for the UI of this client, we found that the linux version of this product is very simple and there is no disk cache configuration. You can find a good tool named eatmydata on the Internet. You can use LD_PRELOAD to remove open/fsync, disable open cache, and disable fsync, run the following command after apt-get is installed:

LD_PRELOAD=/usr/lib/x86_64-linux-gnu/libeatmydata.so.1.1.1 115panERROR: ld.so: object '/usr/lib/x86_64-linux-gnu/libeatmydata.so.1.1.1' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS64): ignored.

Check that the original 115 network disk is a 32-bit program, and then install the 32-bit version of libeatmydata. Then try again and there will be no error. Look at dstat and iotop, and you can't see frequent disk operations.