The Ceph Blog

Ceph blog stories provide high-level spotlights on our customers all over the world

  • November 9, 2013
    Ceph Performance Part 2: Write Throughput Without SSD Journals

    INTRODUCTION Hello again! If you are new around these parts you may want to start out by reading the first article in this series available here. For the rest of you, I am sure you are no doubt aware by now of the epic battle that Mark Shuttleworth and I are waging over who can …Read more

  • October 9, 2013
    Ceph Performance Part 1: Disk Controller Write Throughput

    Introduction Here at Inktank our developers have been toiling away at their desks, profiling and optimizing Ceph to make it one of the fastest distributed storage solutions on the planet.  One question we often get asked is how to build an optimally performing Ceph cluster.  This isn’t always an easy question to answer because it …Read more

  • July 12, 2013
    Ceph Cuttlefish VS Bobtail Part 5: Results Summary & Conclusion

    Contents RESULTS SUMMARY 4K RELATIVE PERFORMANCE 128K RELATIVE PERFORMANCE 4M RELATIVE PERFORMANCE CONCLUSION RESULTS SUMMARY For those of you that may have just wandered in from some obscure corner of the internet and haven’t seen the earlier parts of this series, you may want to go back and start at the beginning. If you’ve made […]

  • July 12, 2013
    Ceph Cuttlefish VS Bobtail Part 4: 4M RBD Performance

    Contents Introduction Sequential Writes Random Writes Sequential Reads Random Reads Conclusion INTRODUCTION This is the part I’ve been waiting for. We’ll be testing just how fast we can make Ceph perform with 4M IOs on Kernel and QEMU/KVM RBD volumes. Again, we’ll be looking at how performance scales as the number of concurrent IOs increases […]

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