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Hello, hopefully this is the correct place to ask this... We use distcc with clang++ and I have recently added -Wunreachable-code to our set of warnings.  The problem I am seeing is the compile fails with (valid) unreachable code warnings on the slave, but passes (no warning) locally.  All machines have the same compiler version clang version 8.0.1-svn369350-1~exp1~20190820121219.79

5-nodes server and 1 node client are connected by gigabits Ethernet. #] iozone -r 32k -r 512k -s 8G KB reclen write rewrite read reread read write read rewrite read fwrite frewrite fread freread 8388608 32 10559 9792 62435 62260 8388608 512 63012 63409 63409 63138 It seems 32k write/rewrite performance are very poor, which is different from a local file system. In the local file system, the big difference will only present...

Help please- I am running 3.3.1 on Centos using a 10GB network. I get reasonable write speeds, although I think they could be faster. But my read speeds are REALLY slow. Executive summary: On gluster client- Writes average about 700-800MB/s Reads average about 70-80MB/s On server- Writes average about 1-1.5GB/s Reads average about 2-3GB/s Any thoughts? Here are some additional details:

Under Solaris 10 on a 4 core Sun Ultra 40 with 20GB RAM, I am setting up a Sun StorageTek 2540 with 12 300GB 15K RPM SAS drives and connected via load-shared 4Gbit FC links. This week I have tried many different configurations, using firmware managed RAID, ZFS managed RAID, and with the controller cache enabled or disabled. My objective is to obtain the best single-file write performance.