Saturday, July 29, 2017

Tracing userspace static probes with perf(1)

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The perf(1) tool added support for userspace static probes in Linux 4.8. Userspace static probes are pre-defined trace points in userspac...
Thursday, July 13, 2017

Packet capture coming to AF_VSOCK

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For anyone interested in the AF_VSOCK zero-configuration host<->guest communications channel it's important to be able to observe ...
Monday, February 6, 2017

Slides posted for "Using NVDIMM under KVM" talk

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I gave a talk on NVDIMM persistent memory at FOSDEM 2017. QEMU has gained support for emulated NVDIMMs and they can be used efficiently und...
Saturday, December 17, 2016

13 years of using Linux

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I've been using Linux on both work and personal machines for 13 years . Over time I've tried various distributions, changed the natu...
Saturday, September 17, 2016

Making I/O deterministic with blkdebug breakpoints

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Recently I was looking for a deterministic way to reproduce a QEMU bug that occurred when a guest reboots while an IDE/ATA TRIM (discard) re...
Friday, May 13, 2016

Git: Internals of how objects are stored

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Git has become the ubiquitous version control tool. A big community has grown around Git over the years. From its origins with the Linux ...
Friday, March 4, 2016

Slides available for "NFS over virtio-vsock: Host/guest file sharing for virtual machines"

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I have been working on the virtio-vsock host/guest communications mechanism and the first application is file sharing with NFS. NFS is a ma...