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Enhancement
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Resolution: Fixed
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P4
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hs22
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b02
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generic
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generic
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Not verified
| Issue | Fix Version | Assignee | Priority | Status | Resolution | Resolved In Build |
|---|---|---|---|---|---|---|
| JDK-2213614 | 7u2 | Vladimir Kozlov | P4 | Closed | Fixed | b04 |
| JDK-2217483 | 6u32 | Kevin Walls | P4 | Closed | Fixed | b01 |
L2 cache line size is 32 bytes on T4 instead of 64 bytes on T series before. As result BIS instruction used for allocation prefetching initialize only 32 bytes. Jbb2005 runs show that prefetching 64 bytes is still better on T4 so 2 BIS instructions should be issued.
- backported by
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JDK-2213614 Adjust allocation prefetching for T4
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- Closed
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- Closed
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- relates to
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JDK-7081926 assert(VM_Version::supports_sse2()) failed: must support
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- Closed
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