Data migration control method, data migration method and data migration device
A technology of data and data volume, applied in the field of data transmission, can solve the problems of reduced CC-NUMA system performance, long time consumption, hotspot transmission path and data congestion, etc.
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Embodiment 1
[0082] The implementation scenario of Example 1 is a CC-NUMA system including S0-S7 with 8 CPUs, such as Figure 4 shown. The system includes 4 NCs, namely NC0-NC3, and each NC is connected to 2 CPUs through Quick Path Interconnect (QPI, Quick Path Interconnect) or other buses. The percentage marked next to the transmission link between two NCs is used to identify the usage percentage of the transmission link (that is, the bandwidth utilization rate), that is, the bandwidth occupied by the packets transmitted on the transmission link exceeds the rated bandwidth of the transmission link. percentage of the bandwidth. The higher the percentage marked next to the transmission link, the busier the transmission link and the smaller the idle bandwidth; otherwise, the idler the transmission link is and the larger the idle bandwidth is. also, Figure 4 The thicker dashed line with an arrow is used to indicate the migration path of data from the source to the destination; and the thi...
Embodiment 2
[0135] Embodiment 2 is mainly to apply the data migration control method provided by the embodiment of the present invention to a large-scale database, so as to improve the system-wide performance of the large-scale database.
[0136] Such as Figure 9 As shown in , it is a schematic diagram of realizing the data migration control method provided by the embodiment of the present invention in a large database. here, for Figure 9 in and previously introduced figure 1 and Figure 4 The numbers and characters corresponding to the numbers and characters with the same meaning are omitted, and the emphasis is on Figure 9 different from figure 1 and Figure 4 part. These parts include: Orig Shared Data indicates the original data to be migrated by DMA; Shared Data Copy1~3 indicates the Orig Shared Data migrated from the source NC to other NCs and stored; the solid line with the arrow indicates the CPU Prevent access to the data migrated through DAM in the NC connected to itse...
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Abstract
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Application Information
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