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fuse: don't limit max_threads to num of CPU cores

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fuse threads are mostly blocked on waiting IO. They are not CPU intensive. So,
there is no reason to limit them by the number of CPU cores.

We got 7x IOPS with this patch on a 2 core VM.
This commit is contained in:
胡玮文
2025-03-04 15:05:09 +08:00
parent c3a16b5cd8
commit 253c1da72d
1 changed files with 1 additions and 6 deletions
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7
src/fuse/FuseClients.cc
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@@ -77,12 +77,7 @@ Result<Void> FuseClients::init(const flat::AppInfo &appInfo,
enableWritebackCache = fuseConfig.enable_writeback_cache();
memsetBeforeRead = fuseConfig.memset_before_read();
maxIdleThreads = fuseConfig.max_idle_threads();
int logicalCores = std::thread::hardware_concurrency();
if (logicalCores != 0) {
maxThreads = std::min(fuseConfig.max_threads(), (logicalCores + 1) / 2);
} else {
maxThreads = fuseConfig.max_threads();
}
maxThreads = fuseConfig.max_threads();
bufPool = net::RDMABufPool::create(fuseConfig.io_bufs().max_buf_size(), fuseConfig.rdma_buf_pool_size());
iovs.init(fuseRemountPref.value_or(fuseMountpoint), fuseConfig.iov_limit());