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| kata-irc-bot | <s257117> Hello @jose.carlos.venegas.m, I'm still not able to have an accurate benchmark for the I/O. What I find out is that if using kata-qemu (9p) there is no way to bypass the host cache (actually only the guest page cache is bypassed), instead with kata-qemu-virtiofs the host page cache is not used. Why we have such a behaviour? ```host:``` | 13:32 |
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| kata-irc-bot | <s257117> Hello @jose.carlos.venegas.m, I find out that with kata-qemu(9p) is not possible to bypass the host cache whereas with kata-qemu-virtiofs we don't use it. Why we have such a behaviour? Here an example: ```host_cache = 1614 MB container(9p) runs : dd if=/dev/zero of=testfile bs=4k count=262144 oflag=direct host_cache = 2665 MB =========================================================== host_cache = 1614 MB container(virtio-fs) runs: | 13:38 |
| kata-irc-bot | dd if=/dev/zero of=testfile bs=4k count=262144 oflag=direct host_cache = 1783 MB``` | 13:38 |
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