search for: satistics

On Fri, 03/21 17:41, Jason Wang wrote: > This patch adds simple python to display vhost satistics of vhost, the codes > were based on kvm_stat script from qemu. As work function has been recored, > filters could be used to distinguish which kinds of work are being executed or > queued: > > vhost statistics > > vhost_virtio_update_used_idx 1215215 0 &g...

On Fri, 03/21 17:41, Jason Wang wrote: > This patch adds simple python to display vhost satistics of vhost, the codes > were based on kvm_stat script from qemu. As work function has been recored, > filters could be used to distinguish which kinds of work are being executed or > queued: > > vhost statistics > > vhost_virtio_update_used_idx 1215215 0 &g...

Satistics counters is useful for debugging and performance optimization, so this patch lets virtio_net driver collect following and export them to userspace through "ethtool -S": - number of packets sent/received - number of bytes sent/received - number of callbacks for tx/rx - number of kick for...

Satistics counters is useful for debugging and performance optimization, so this patch lets virtio_net driver collect following and export them to userspace through "ethtool -S": - number of packets sent/received - number of bytes sent/received - number of callbacks for tx/rx - number of kick for...

This patch adds simple python to display vhost satistics of vhost, the codes were based on kvm_stat script from qemu. As work function has been recored, filters could be used to distinguish which kinds of work are being executed or queued: vhost statistics vhost_virtio_update_used_idx 1215215 0 vhost_virtio_get_vq_desc...

To help in vhost analyzing, the following series adding basic tracepoints to vhost. Operations of both virtqueues and vhost works were traced in current implementation, net code were untouched. A top-like satistics displaying script were introduced to help the troubleshooting. TODO: - net specific tracepoints? --- Jason Wang (2): vhost: basic tracepoints tools: virtio: add a top-like utility for displaying vhost satistics drivers/vhost/trace.h | 153 ++++++++++++++++++++ drivers/vhost/vho...

To help in vhost analyzing, the following series adding basic tracepoints to vhost. Operations of both virtqueues and vhost works were traced in current implementation, net code were untouched. A top-like satistics displaying script were introduced to help the troubleshooting. TODO: - net specific tracepoints? --- Jason Wang (2): vhost: basic tracepoints tools: virtio: add a top-like utility for displaying vhost satistics drivers/vhost/trace.h | 153 ++++++++++++++++++++ drivers/vhost/vho...

Hi all I am looking for an add-in. I am currently working on something and I use daily data of closing stock prices. As not all companies are traded daily (e.g. on monday, then on thursday etc) at the stock exchange, there is satistically a problem. There are some papers which explain the approach to handle infrequent trading of a stock or non synchronous data and beta estimation (Dimson, 1979;

Recent debugging on vhost net zerocopy shows the need of tracepoints. So to help in vhost{net} debugging and performance analyzing, the following series adding basic tracepoints to vhost. Operations of both vhost and vhost_net were traced in current implementation. A top-like satistics displaying script were introduced to help the troubleshooting: vhost statistics vhost_virtio_update_used_idx 1215215 0 vhost_virtio_get_vq_desc 1215215 0 vhost_work_queue_wakeup 986808 0 vhost_virtio_signal...

Recent debugging on vhost net zerocopy shows the need of tracepoints. So to help in vhost{net} debugging and performance analyzing, the following series adding basic tracepoints to vhost. Operations of both vhost and vhost_net were traced in current implementation. A top-like satistics displaying script were introduced to help the troubleshooting: vhost statistics vhost_virtio_update_used_idx 1215215 0 vhost_virtio_get_vq_desc 1215215 0 vhost_work_queue_wakeup 986808 0 vhost_virtio_signal...

Currently, we store the statistics in the independent fields of virtnet_stats, this is not scalable when we want to add more counters. As suggested by Michael, this patch convert it to an array and use the enum as the index to access them. Signed-off-by: Jason Wang <jasowang at redhat.com> --- drivers/net/virtio_net.c | 30 +++++++++++++++++------------- 1 files changed, 17

Currently, we store the statistics in the independent fields of virtnet_stats, this is not scalable when we want to add more counters. As suggested by Michael, this patch convert it to an array and use the enum as the index to access them. Signed-off-by: Jason Wang <jasowang at redhat.com> --- drivers/net/virtio_net.c | 30 +++++++++++++++++------------- 1 files changed, 17

Hi, You didn't specify the satistical model you are intereted in, I will suppose it is something like: #Organims ~ Landscape + Soil + Depth + Species I suppose you have a table of with something like... Spec Lands Soil Depth #Organisms A 1 1 1 10 A 1 2 1 2 B 1 1 1 0 B 2 2 2 2 ... etc, Normally, the count of organisms in soil samples follows a posisson distribution, not a normal one.

Hi, there, I'd like to get a statistics to reflect the correlation of two time serials observations. for example, one time serials over time 1 to 20, and another one from same time points from 1 to 20. I need one scalar satistics as a correlation of these two observations. Thank you and have a good weekend! Jieping Zhao PhD student in Bioinformatics, NCSU Lab homepage: http://coltrane.gnets.ncsu.edu/index.html

...not reset state in vdpasim_queue_ready vdpa_sim_net: Offer VIRTIO_NET_F_STATUS Jason Wang (11): vdpa_sim: use weak barriers vdpa_sim: switch to use __vdpa_alloc_device() vdpasim: customize allocation size vdpa_sim: support vendor statistics vdpa_sim_net: vendor satistics vdpa_sim: get rid of DMA ops virtio_ring: per virtqueue dma device vdpa: introduce get_vq_dma_device() virtio-vdpa: support per vq dma device vdpa: set dma mask for vDPA device vdpa: mlx5: support per virtqueue dma device Kangjie Xu (1): vhost-net: support...

...> vdpa_sim_net: Offer VIRTIO_NET_F_STATUS > > Jason Wang (11): > vdpa_sim: use weak barriers > vdpa_sim: switch to use __vdpa_alloc_device() > vdpasim: customize allocation size > vdpa_sim: support vendor statistics > vdpa_sim_net: vendor satistics > vdpa_sim: get rid of DMA ops > virtio_ring: per virtqueue dma device > vdpa: introduce get_vq_dma_device() > virtio-vdpa: support per vq dma device > vdpa: set dma mask for vDPA device > vdpa: mlx5: support per virtqueue dma device > >...

...multiqueue virtio-net were dramatically improved. - Netperf result shows latency were greately improved according to the test result. The throughput were kept or improved when transfter with large packets. But we get regression with small packet (<1500) transmission/receiving. According to the satistics, TCP tends batch less when mq is enabled which means much more but smaller pakcets were sent/received whcih lead much higher cpu utilization and degradate the throughput. In the future, either tuning of TCP or automatic switch bettwen mq and sq is needed. Test environment: - Intel(R) Xeon(R) CPU E...

...multiqueue virtio-net were dramatically improved. - Netperf result shows latency were greately improved according to the test result. The throughput were kept or improved when transfter with large packets. But we get regression with small packet (<1500) transmission/receiving. According to the satistics, TCP tends batch less when mq is enabled which means much more but smaller pakcets were sent/received whcih lead much higher cpu utilization and degradate the throughput. In the future, either tuning of TCP or automatic switch bettwen mq and sq is needed. Test environment: - Intel(R) Xeon(R) CPU E...