Nowadays, "kmem -s" output can have long lines due to cache name with memcg name, and I don't think that it's human-readable as it is.
crash> kmem -s CACHE NAME OBJSIZE ALLOCATED TOTAL SLABS SSIZE ffff8a1522c15380 kmalloc-128(12536:session-11.scope) 128 111 128 4 4k ffff8a1522c15200 radix_tree_node(12536:session-11.scope) 576 340 434 31 8k ffff8a1523d15380 xfs_inode(12536:session-11.scope) 904 1567 1581 93 16k ffff8a1522c15080 nfs_inode_cache(12536:session-11.scope) 1072 140 165 11 16k ffff8a1523d14c00 shmem_inode_cache(12536:session-11.scope) 696 0 46 2 16k So, can we move the 'NAME' column to the last of line like this? crash> kmem -s CACHE OBJSIZE ALLOCATED TOTAL SLABS SSIZE NAME ffff8a1522c15380 128 111 128 4 4k kmalloc-128(12536:session-11.scope) ffff8a1522c15200 576 340 434 31 8k radix_tree_node(12536:session-11.scope) ffff8a1523d15380 904 1567 1581 93 16k xfs_inode(12536:session-11.scope) ffff8a1522c15080 1072 140 165 11 16k nfs_inode_cache(12536:session-11.scope) ffff8a1523d14c00 696 0 46 2 16k shmem_inode_cache(12536:session-11.scope) If we can, crash has the three functions to print them for each slab/slub version and I think that it would be good to change all of them together. Fortunately, the header is same among them, and it looks like we can unify them into one function. [Patch 1] And then, move it to the last of line. [Patch 2] I tested this with some vmcores having PERCPU_KMALLOC_V2 or KMALLOC_SLUB and found no problem, but I don't have any vmcores having PERCPU_KMALLOC_V1 or no flag. Kazuhito Hagio (2): Unify the three functions printing "kmem -s" line into one function Move NAME column in "kmem -s" output to the last of line help.c | 136 +++++++++++++++++++++++++++++++-------------------------------- memory.c | 132 +++++++++++++++---------------------------------------------- 2 files changed, 99 insertions(+), 169 deletions(-) -- 1.8.3.1 -- Crash-utility mailing list Crash-utility@redhat.com https://www.redhat.com/mailman/listinfo/crash-utility
