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Memory alignment tweaks for better performance (#22)

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Co-authored-by: vlofgren <vlofgren@gmail.com>
Reviewed-on: https://git.marginalia.nu/marginalia/marginalia.nu/pulls/22
This commit is contained in:
Viktor Lofgren 2022-05-30 23:42:40 +02:00
parent c7a095e497
commit fcd2708fe3
1 changed files with 3 additions and 2 deletions
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marginalia_nu/src/main/java/nu/marginalia/util/multimap/MultimapFileLong.java
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@ -52,14 +52,15 @@ public class MultimapFileLong implements AutoCloseable {
} }
private static int getBufferSize(long totalSize, boolean write) { private static int getBufferSize(long totalSize, boolean write) {
int defaultBig = 2<<23;
if (totalSize > Integer.MAX_VALUE/WORD_SIZE) { if (totalSize > Integer.MAX_VALUE/WORD_SIZE) {
return (int)(Integer.MAX_VALUE/WORD_SIZE); return defaultBig;
} }
else if (write && totalSize < 8*1024*1024) { else if (write && totalSize < 8*1024*1024) {
return 8*1024*1024; return 8*1024*1024;
} }
else { else {
return (int) Math.min(totalSize, Integer.MAX_VALUE/WORD_SIZE); return (int) Math.min(totalSize, defaultBig);
} }
} }