Hi, I have a 600GB xfs file system mounted that suddenly started running slow on writes. It takes about 2.5 to 3.5 seconds to write a single file. Some folders (with less number of files) work well. But it will copy fast, then slow for long periods of time. This is a virtualized CentOS 5.9 64 bit box on Citrix Xenserver 5.6SP2. Doesn't seem to be a load i/o issue as most of the load is system%. My fragmentation is less than 1 %. Any help would be greatly appreciated. I was looking to see if there was a better way to mount this partition or allocate more memory, whatever it takes. The folders are image folders that have anywhere between 5 to 10 million images in each folder. Thanks Fstab mount is: /dev/xvdb1 /images xfs defaults,nodiratime,nosuid,nodev,allocsize=64m 1 1 Slabtop is: Active / Total Objects (% used) : 2705947 / 2872142 (94.2%) Active / Total Slabs (% used) : 290008 / 290008 (100.0%) Active / Total Caches (% used) : 111 / 165 (67.3%) Active / Total Size (% used) : 1048796.52K / 1083850.55K (96.8%) Minimum / Average / Maximum Object : 0.02K / 0.38K / 128.00K OBJS ACTIVE USE OBJ SIZE SLABS OBJ/SLAB CACHE SIZE NAME 843080 836242 99% 0.44K 105385 8 421540K xfs_inode 839608 836242 99% 0.56K 119944 7 479776K xfs_vnode 461610 432085 93% 0.21K 25645 18 102580K dentry_cache 306200 306200 100% 0.09K 7655 40 30620K buffer_head 222570 121732 54% 0.12K 7419 30 29676K size-128 117439 97108 82% 0.52K 16777 7 67108K radix_tree_node 30820 30814 99% 0.19K 1541 20 6164K xfs_ili 13270 13266 99% 0.74K 2654 5 10616K ext3_inode_cache 9390 9390 100% 0.25K 626 15 2504K size-256 7682 7562 98% 0.16K 334 23 1336K vm_area_struct 3068 1711 55% 0.06K 52 59 208K size-64 2816 2786 98% 0.09K 64 44 256K sysfs_dir_cache 2055 1275 62% 0.25K 137 15 548K filp 1440 1289 89% 0.02K 10 144 40K anon_vma 1120 999 89% 0.03K 10 112 40K size-32 768 534 69% 0.08K 16 48 64K selinux_inode_security 756 698 92% 0.55K 108 7 432K inode_cache 576 554 96% 0.58K 96 6 384K proc_inode_cache 476 455 95% 1.00K 119 4 476K size-1024 404 403 99% 2.00K 202 2 808K size-2048 404 404 100% 4.00K 404 1 1616K size-4096 360 350 97% 0.12K 12 30 48K bio 320 284 88% 0.50K 40 8 160K size-512 _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs
