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Change native library default to epoll over io_uring #3278

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Merged
tishun merged 2 commits into from
May 23, 2025
Merged

Change native library default to epoll over io_uring #3278

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fa21ff6
Change native library default to epoll over io_uring
thachlp Apr 26, 2025
3e221a1
Move the warning log to isAvailable method
thachlp May 19, 2025
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7 changes: 7 additions & 0 deletions src/main/java/io/lettuce/core/resource/Transports.java
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Original file line number Diff line number Diff line change
@@ -1,6 +1,8 @@
package io.lettuce.core.resource;

import io.lettuce.core.internal.LettuceAssert;
import io.micrometer.common.util.internal.logging.InternalLogger;
import io.micrometer.common.util.internal.logging.InternalLoggerFactory;
import io.netty.channel.Channel;
import io.netty.channel.EventLoopGroup;
import io.netty.channel.nio.NioEventLoopGroup;
Expand Down Expand Up @@ -59,13 +61,18 @@ public static Class<? extends DatagramChannel> datagramChannelClass() {
*/
public static class NativeTransports {

private static final InternalLogger transportsLogger = InternalLoggerFactory.getInstance(Transports.class);

static EventLoopResources RESOURCES = KqueueProvider.isAvailable() ? KqueueProvider.getResources()
: IOUringProvider.isAvailable() ? IOUringProvider.getResources() : EpollProvider.getResources();

/**
* @return {@code true} if a native transport is available.
*/
static boolean isAvailable() {
if (EpollProvider.isAvailable() && IOUringProvider.isAvailable()) {
transportsLogger.warn("Both epoll and io_uring native transports are available, epoll has been prioritized.");
}
return EpollProvider.isAvailable() || KqueueProvider.isAvailable() || IOUringProvider.isAvailable();
}

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