diff --git a/README.md b/README.md
index 44b4363725c0..d62c2f43e93e 100644
--- a/README.md
+++ b/README.md
@@ -87,36 +87,18 @@ pair of .c and .py files, and some are directories of files.
 - tools/[argdist](tools/argdist.py): Display function parameter values as a histogram or frequency count. [Examples](tools/argdist_example.txt).
 - tools/[bashreadline](tools/bashreadline.py): Print entered bash commands system wide. [Examples](tools/bashreadline_example.txt).
 - tools/[bindsnoop](tools/bindsnoop.py): Trace IPv4 and IPv6 bind() system calls (bind()). [Examples](tools/bindsnoop_example.txt).
-- tools/[biolatency](tools/biolatency.py): Summarize block device I/O latency as a histogram. [Examples](tools/biolatency_example.txt).
-- tools/[biotop](tools/biotop.py): Top for disks: Summarize block device I/O by process. [Examples](tools/biotop_example.txt).
-- tools/[biopattern](tools/biopattern.py): Identify random/sequential disk access patterns. [Examples](tools/biopattern_example.txt).
-- tools/[biosnoop](tools/biosnoop.py): Trace block device I/O with PID and latency. [Examples](tools/biosnoop_example.txt).
-- tools/[bitesize](tools/bitesize.py): Show per process I/O size histogram. [Examples](tools/bitesize_example.txt).
 - tools/[bpflist](tools/bpflist.py): Display processes with active BPF programs and maps. [Examples](tools/bpflist_example.txt).
-- tools/[btrfsdist](tools/btrfsdist.py): Summarize btrfs operation latency distribution as a histogram. [Examples](tools/btrfsdist_example.txt).
-- tools/[btrfsslower](tools/btrfsslower.py): Trace slow btrfs operations. [Examples](tools/btrfsslower_example.txt).
 - tools/[capable](tools/capable.py): Trace security capability checks. [Examples](tools/capable_example.txt).
-- tools/[cachestat](tools/cachestat.py): Trace page cache hit/miss ratio. [Examples](tools/cachestat_example.txt).
-- tools/[cachetop](tools/cachetop.py): Trace page cache hit/miss ratio by processes. [Examples](tools/cachetop_example.txt).
 - tools/[compactsnoop](tools/compactsnoop.py): Trace compact zone events with PID and latency. [Examples](tools/compactsnoop_example.txt).
 - tools/[cpudist](tools/cpudist.py): Summarize on- and off-CPU time per task as a histogram. [Examples](tools/cpudist_example.txt)
 - tools/[cpuunclaimed](tools/cpuunclaimed.py): Sample CPU run queues and calculate unclaimed idle CPU. [Examples](tools/cpuunclaimed_example.txt)
 - tools/[criticalstat](tools/criticalstat.py): Trace and report long atomic critical sections in the kernel. [Examples](tools/criticalstat_example.txt)
 - tools/[dbslower](tools/dbslower.py): Trace MySQL/PostgreSQL queries slower than a threshold. [Examples](tools/dbslower_example.txt).
 - tools/[dbstat](tools/dbstat.py): Summarize MySQL/PostgreSQL query latency as a histogram. [Examples](tools/dbstat_example.txt).
-- tools/[dcsnoop](tools/dcsnoop.py): Trace directory entry cache (dcache) lookups. [Examples](tools/dcsnoop_example.txt).
-- tools/[dcstat](tools/dcstat.py): Directory entry cache (dcache) stats. [Examples](tools/dcstat_example.txt).
 - tools/[deadlock](tools/deadlock.py): Detect potential deadlocks on a running process. [Examples](tools/deadlock_example.txt).
-- tools/[dirtop](tools/dirtop.py): File reads and writes by directory. Top for directories. [Examples](tools/dirtop_example.txt).
 - tools/[drsnoop](tools/drsnoop.py): Trace direct reclaim events with PID and latency. [Examples](tools/drsnoop_example.txt).
 - tools/[execsnoop](tools/execsnoop.py): Trace new processes via exec() syscalls. [Examples](tools/execsnoop_example.txt).
 - tools/[exitsnoop](tools/exitsnoop.py): Trace process termination (exit and fatal signals). [Examples](tools/exitsnoop_example.txt).
-- tools/[ext4dist](tools/ext4dist.py): Summarize ext4 operation latency distribution as a histogram. [Examples](tools/ext4dist_example.txt).
-- tools/[ext4slower](tools/ext4slower.py): Trace slow ext4 operations. [Examples](tools/ext4slower_example.txt).
-- tools/[filelife](tools/filelife.py): Trace the lifespan of short-lived files. [Examples](tools/filelife_example.txt).
-- tools/[filegone](tools/filegone.py): Trace why file gone (deleted or renamed). [Examples](tools/filegone_example.txt).
-- tools/[fileslower](tools/fileslower.py): Trace slow synchronous file reads and writes. [Examples](tools/fileslower_example.txt).
-- tools/[filetop](tools/filetop.py): File reads and writes by filename and process. Top for files. [Examples](tools/filetop_example.txt).
 - tools/[funccount](tools/funccount.py): Count kernel function calls. [Examples](tools/funccount_example.txt).
 - tools/[funcinterval](tools/funcinterval.py): Time interval between the same function as a histogram. [Examples](tools/funcinterval_example.txt).
 - tools/[funclatency](tools/funclatency.py): Time functions and show their latency distribution. [Examples](tools/funclatency_example.txt).
@@ -128,13 +110,9 @@ pair of .c and .py files, and some are directories of files.
 - tools/[klockstat](tools/klockstat.py): Traces kernel mutex lock events and display locks statistics. [Examples](tools/klockstat_example.txt).
 - tools/[kvmexit](tools/kvmexit.py): Display the exit_reason and its statistics of each vm exit. [Examples](tools/kvmexit_example.txt).
 - tools/[llcstat](tools/llcstat.py): Summarize CPU cache references and misses by process. [Examples](tools/llcstat_example.txt).
-- tools/[mdflush](tools/mdflush.py): Trace md flush events. [Examples](tools/mdflush_example.txt).
 - tools/[memleak](tools/memleak.py): Display outstanding memory allocations to find memory leaks. [Examples](tools/memleak_example.txt).
-- tools/[mountsnoop](tools/mountsnoop.py): Trace mount and umount syscalls system-wide. [Examples](tools/mountsnoop_example.txt).
 - tools/[mysqld_qslower](tools/mysqld_qslower.py): Trace MySQL server queries slower than a threshold. [Examples](tools/mysqld_qslower_example.txt).
 - tools/[netqtop](tools/netqtop.py) tools/[netqtop.c](tools/netqtop.c): Trace and display packets distribution on NIC queues. [Examples](tools/netqtop_example.txt).
-- tools/[nfsslower](tools/nfsslower.py): Trace slow NFS operations. [Examples](tools/nfsslower_example.txt).
-- tools/[nfsdist](tools/nfsdist.py): Summarize NFS operation latency distribution as a histogram. [Examples](tools/nfsdist_example.txt).
 - tools/[offcputime](tools/offcputime.py): Summarize off-CPU time by kernel stack trace. [Examples](tools/offcputime_example.txt).
 - tools/[offwaketime](tools/offwaketime.py): Summarize blocked time by kernel off-CPU stack and waker stack. [Examples](tools/offwaketime_example.txt).
 - tools/[oomkill](tools/oomkill.py): Trace the out-of-memory (OOM) killer. [Examples](tools/oomkill_example.txt).
@@ -180,10 +158,35 @@ pair of .c and .py files, and some are directories of files.
 - tools/[uobjnew](tools/lib/uobjnew.py): Summarize object allocation events by object type and number of bytes allocated. [Examples](tools/lib/uobjnew_example.txt).
 - tools/[ustat](tools/lib/ustat.py): Collect events such as GCs, thread creations, object allocations, exceptions and more in high-level languages. [Examples](tools/lib/ustat_example.txt).
 - tools/[uthreads](tools/lib/uthreads.py): Trace thread creation events in Java and raw pthreads. [Examples](tools/lib/uthreads_example.txt).
+- tools/[wakeuptime](tools/wakeuptime.py): Summarize sleep to wakeup time by waker kernel stack. [Examples](tools/wakeuptime_example.txt).
+
+##### Storage tools
+
+- tools/[bitesize](tools/bitesize.py): Show per process I/O size histogram. [Examples](tools/bitesize_example.txt).
+- tools/[cachestat](tools/cachestat.py): Trace page cache hit/miss ratio. [Examples](tools/cachestat_example.txt).
+- tools/[cachetop](tools/cachetop.py): Trace page cache hit/miss ratio by processes. [Examples](tools/cachetop_example.txt).
+- tools/[dcsnoop](tools/dcsnoop.py): Trace directory entry cache (dcache) lookups. [Examples](tools/dcsnoop_example.txt).
+- tools/[dcstat](tools/dcstat.py): Directory entry cache (dcache) stats. [Examples](tools/dcstat_example.txt).
+- tools/[biolatency](tools/biolatency.py): Summarize block device I/O latency as a histogram. [Examples](tools/biolatency_example.txt).
+- tools/[biotop](tools/biotop.py): Top for disks: Summarize block device I/O by process. [Examples](tools/biotop_example.txt).
+- tools/[biopattern](tools/biopattern.py): Identify random/sequential disk access patterns. [Examples](tools/biopattern_example.txt).
+- tools/[biosnoop](tools/biosnoop.py): Trace block device I/O with PID and latency. [Examples](tools/biosnoop_example.txt).
+- tools/[btrfsdist](tools/btrfsdist.py): Summarize btrfs operation latency distribution as a histogram. [Examples](tools/btrfsdist_example.txt).
+- tools/[btrfsslower](tools/btrfsslower.py): Trace slow btrfs operations. [Examples](tools/btrfsslower_example.txt).
+- tools/[dirtop](tools/dirtop.py): File reads and writes by directory. Top for directories. [Examples](tools/dirtop_example.txt).
+- tools/[ext4dist](tools/ext4dist.py): Summarize ext4 operation latency distribution as a histogram. [Examples](tools/ext4dist_example.txt).
+- tools/[ext4slower](tools/ext4slower.py): Trace slow ext4 operations. [Examples](tools/ext4slower_example.txt).
+- tools/[filelife](tools/filelife.py): Trace the lifespan of short-lived files. [Examples](tools/filelife_example.txt).
+- tools/[filegone](tools/filegone.py): Trace why file gone (deleted or renamed). [Examples](tools/filegone_example.txt).
+- tools/[fileslower](tools/fileslower.py): Trace slow synchronous file reads and writes. [Examples](tools/fileslower_example.txt).
+- tools/[filetop](tools/filetop.py): File reads and writes by filename and process. Top for files. [Examples](tools/filetop_example.txt).
+- tools/[mdflush](tools/mdflush.py): Trace md flush events. [Examples](tools/mdflush_example.txt).
+- tools/[mountsnoop](tools/mountsnoop.py): Trace mount and umount syscalls system-wide. [Examples](tools/mountsnoop_example.txt).
+- tools/[nfsslower](tools/nfsslower.py): Trace slow NFS operations. [Examples](tools/nfsslower_example.txt).
+- tools/[nfsdist](tools/nfsdist.py): Summarize NFS operation latency distribution as a histogram. [Examples](tools/nfsdist_example.txt).
 - tools/[vfscount](tools/vfscount.py): Count VFS calls. [Examples](tools/vfscount_example.txt).
 - tools/[vfsstat](tools/vfsstat.py): Count some VFS calls, with column output. [Examples](tools/vfsstat_example.txt).
 - tools/[virtiostat](tools/virtiostat.py): Show VIRTIO device IO statistics. [Examples](tools/virtiostat_example.txt).
-- tools/[wakeuptime](tools/wakeuptime.py): Summarize sleep to wakeup time by waker kernel stack. [Examples](tools/wakeuptime_example.txt).
 - tools/[xfsdist](tools/xfsdist.py): Summarize XFS operation latency distribution as a histogram. [Examples](tools/xfsdist_example.txt).
 - tools/[xfsslower](tools/xfsslower.py): Trace slow XFS operations. [Examples](tools/xfsslower_example.txt).
 - tools/[zfsdist](tools/zfsdist.py): Summarize ZFS operation latency distribution as a histogram. [Examples](tools/zfsdist_example.txt).