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| kata-irc-bot | <bergwolf> kata ptg etherpad is created: https://etherpad.opendev.org/p/kata-ptg-2020-Oct please add your names and interested topics if you plan to attend. Thanks! | 07:21 |
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| kata-irc-bot | <bergwolf> Interesting work. How does it benefit Kata Containers from using gollvm? | 07:22 |
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| kata-irc-bot | <zjh.20052005> What’s the memory overhead of cloud-hypervisor and qemu in Kata2.0? Per my practice, 250MB for each cloud-hypervisor, and 140MB for each qemu process. Both are under the default configurations of kata. | 09:19 |
| kata-irc-bot | <fidencio> @zjh.20052005, what I've noticed using the QEMU on OCP is an overall increase of ~300MB per pod created. I'm using QEMU + virtiofs. | 09:24 |
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| kata-irc-bot | <zjh.20052005> @fidencio It’s quite big though. Is there any way to mitigate? Seems 2.0 aims to optimize the overhead and performance. | 09:39 |
| kata-irc-bot | <fidencio> 2.0 drops down the agent footprint. | 09:40 |
| kata-irc-bot | <fidencio> I do believe that using virtio-mem in the future we'll also be able to reduce it even more | 09:41 |
| kata-irc-bot | <fidencio> And, obviously, tuning QEMU to do exactly what you need is another way to reduce the footprint | 09:41 |
| kata-irc-bot | <fidencio> I'm using vanilla QEMU from RHEL. So, for sure, things can be improved there. | 09:41 |
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| kata-irc-bot | <zjh.20052005> Thanks @fidencio! It indeed drops, but not considerable enough. Is there any benchmark data for different hypervisors? | 09:52 |
| kata-irc-bot | <fidencio> Hmm. That's a good question. Let me ask help from the experienced folks. @bergwolf, do you remember whether we have benchmark data for all the hypervisors? If so, where? | 10:01 |
| kata-irc-bot | <bergwolf> clh and fc should be much smaller than qemu. qemu 5.0/5.1 is much smaller than older qemu. But I don’t have numbers at hand. | 10:03 |
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| kata-irc-bot | <local.tourist.kiev> Both in Go front-end (cgo) and the back-end (SIMD) | 17:06 |
| kata-irc-bot | <local.tourist.kiev> You can tell which hardware you have, for bare metal testing - and I could prepare the build config. | 17:06 |
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| kata-irc-bot | <archana.m.shinde> @eric.ernst 4am UTC Oct 27 => 9pm PST Oct 26 | 18:42 |
| kata-irc-bot | <eric.ernst> so you're saying i should have afternoon coffee today. | 18:43 |
| kata-irc-bot | <eric.ernst> I don't think its the VMM itself, but we need to break this down by component. Perhaps this is a good topic for PTG. | 18:43 |
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| kata-irc-bot | <archana.m.shinde> pretty much | 18:59 |
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| kata-irc-bot | <archana.m.shinde> @local.tourist.kiev Still not clear to me how this project would benefit Kata? | 20:54 |
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| kata-irc-bot | <bergwolf> vmm, host page pte, guest kernel, kata-agent. these are where most of the memory overhead comes from. | 23:54 |
| kata-irc-bot | <bergwolf> I’ve added it to the ptg topics | 23:56 |
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