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Ring Buffer Configuration Guide: Difference between revisions
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→Concurrent Ring buffer and live pcap recording
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The Allegro Network Multimeter has a ''write first'' policy on the ring buffer devices. The Allegro prioritizes writes over reads for a storage. A pcap read can be very slow when there is a high write rate to the ring buffer. | The Allegro Network Multimeter has a ''write first'' policy on the ring buffer devices. The Allegro prioritizes writes over reads for a storage. A pcap read can be very slow when there is a high write rate to the ring buffer. | ||
=== Concurrent ''' | === Concurrent '''ring buffer''' and live '''pcap''' recording === | ||
Please note that HDDs are not made for 2 simultaneous write streams. The write rate will be very low if you capture a live pcap to the single shared storage device while having an active ring buffer. Please use the browser download feature, different disks with the cluster ring buffer or pause the ring buffer while capturing the live pcap. | Please note that HDDs are not made for 2 simultaneous write streams. The write rate will be very low if you capture a live pcap to the single shared storage device while having an active ring buffer. Please use the browser download feature, different disks with the cluster ring buffer or pause the ring buffer while capturing the live pcap. | ||