Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: CFS: A Distributed File System for Large Scale Container Platforms   We propose CFS, a distributed file system for large scale container
platforms. CFS supports both sequential and random file accesses with optimized
storage for both large files and small files, and adopts different replication
protocols for different write scenarios to improve the replication performance.
It employs a metadata subsystem to store and distribute the file metadata
across different storage nodes based on the memory usage. This metadata
placement strategy avoids the need of data rebalancing during capacity
expansion. CFS also provides POSIX-compliant APIs with relaxed semantics and
metadata atomicity to improve the system performance.
  We performed a comprehensive comparison with Ceph, a widely-used distributed
file system on container platforms. Our experimental results show that, in
testing 7 commonly used metadata operations, CFS gives around 3 times
performance boost on average. In addition, CFS exhibits better
random-read/write performance in highly concurrent environments with multiple
clients and processes.

2
The categories of this paper are: math
18
The categories of this paper are: econ
33
The categories of this paper are: plasm-ph
23
The categories of this paper are: solv-int
14
The categories of this paper are: math-ph
30
The categories of this paper are: q-alg
31
The categories of this paper are: ao-sci
12
The categories of this paper are: nucl-th
5
The categories of this paper are: gr-qc
4
The categories of this paper are: cond-mat
27
The categories of this paper are: comp-gas
26
The categories of this paper are: bayes-an
6
The categories of this paper are: astro-ph
9
The categories of this paper are: nlin
20
The categories of this paper are: acc-phys
36
The categories of this paper are: cmp-lg