Hi, New to ATS, I compiled 8.0.7 from source yesterday on CentOS 7 # source /opt/rh/devtoolset-7/enable # ./configure --enable-experimental-plugins # make && make install Testing it as a transparent forward proxy serving ~500 users with http caching enabled. I have first tried raw cache storage then volume file but in both cases I got so many read and few write failures on a 100 GB SSD partition.
"proxy.process.cache.volume_0.bytes_used": "3323351040", "proxy.process.cache.volume_0.bytes_total": "106167836672", "proxy.process.cache.volume_0.ram_cache.total_bytes": "12884901888", "proxy.process.cache.volume_0.ram_cache.bytes_used": "6062080", "proxy.process.cache.volume_0.ram_cache.hits": "4916", "proxy.process.cache.volume_0.ram_cache.misses": "1411", "proxy.process.cache.volume_0.pread_count": "0", "proxy.process.cache.volume_0.percent_full": "3", "proxy.process.cache.volume_0.lookup.active": "0", "proxy.process.cache.volume_0.lookup.success": "0", "proxy.process.cache.volume_0.lookup.failure": "0", "proxy.process.cache.volume_0.read.active": "1", "proxy.process.cache.volume_0.read.success": "5566", "proxy.process.cache.volume_0.read.failure": "22084", "proxy.process.cache.volume_0.write.active": "8", "proxy.process.cache.volume_0.write.success": "5918", "proxy.process.cache.volume_0.write.failure": "568", "proxy.process.cache.volume_0.write.backlog.failure": "272", "proxy.process.cache.volume_0.update.active": "1", "proxy.process.cache.volume_0.update.success": "306", "proxy.process.cache.volume_0.update.failure": "4", "proxy.process.cache.volume_0.remove.active": "0", "proxy.process.cache.volume_0.remove.success": "0", "proxy.process.cache.volume_0.remove.failure": "0", "proxy.process.cache.volume_0.evacuate.active": "0", "proxy.process.cache.volume_0.evacuate.success": "0", "proxy.process.cache.volume_0.evacuate.failure": "0", "proxy.process.cache.volume_0.scan.active": "0", "proxy.process.cache.volume_0.scan.success": "0", "proxy.process.cache.volume_0.scan.failure": "0", "proxy.process.cache.volume_0.direntries.total": "13255088", "proxy.process.cache.volume_0.direntries.used": "9230", "proxy.process.cache.volume_0.directory_collision": "0", "proxy.process.cache.volume_0.frags_per_doc.1": "5372", "proxy.process.cache.volume_0.frags_per_doc.2": "0", "proxy.process.cache.volume_0.frags_per_doc.3+": "625", "proxy.process.cache.volume_0.read_busy.success": "4", "proxy.process.cache.volume_0.read_busy.failure": "351", Disk read/write tests: hdparm -t /dev/sdb1 /dev/sdb1: Timing buffered disk reads: 196 MB in 3.24 seconds = 60.54 MB/sec hdparm -T /dev/sdb1 /dev/sdb1: Timing cached reads: 11662 MB in 1.99 seconds = 5863.27 MB/sec dd if=/dev/zero of=/cache/test1.img bs=1G count=1 oflag=dsync 1+0 records in 1+0 records out 1073741824 bytes (1.1 GB) copied, 67.6976 s, 15.9 MB/s dd if=/dev/zero of=/cache/test2.img bs=512 count=1000 oflag=dsync 1000+0 records in 1000+0 records out 512000 bytes (512 kB) copied, 0.374173 s, 1.4 MB/s Please help, Thank you, Eddi
