Upgrade deps

Also added docs for Skymap

Cargo.lock

@@ -223,12 +223,6 @@ dependencies = [
  "winapi",
 ]
 
-[[package]]
-name = "doc-comment"
-version = "0.3.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fea41bba32d969b513997752735605054bc0dfa92b4c56bf1189f2e174be7a10"
-
 [[package]]
 name = "either"
 version = "1.6.1"
@@ -468,9 +462,9 @@ checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
 
 [[package]]
 name = "libc"
-version = "0.2.98"
+version = "0.2.99"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "320cfe77175da3a483efed4bc0adc1968ca050b098ce4f2f1c13a56626128790"
+checksum = "a7f823d141fe0a24df1e23b4af4e3c7ba9e5966ec514ea068c93024aa7deb765"
 
 [[package]]
 name = "libsky"
@@ -878,18 +872,18 @@ checksum = "d29ab0c6d3fc0ee92fe66e2d99f700eab17a8d57d1c1d3b748380fb20baa78cd"
 
 [[package]]
 name = "serde"
-version = "1.0.126"
+version = "1.0.127"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ec7505abeacaec74ae4778d9d9328fe5a5d04253220a85c4ee022239fc996d03"
+checksum = "f03b9878abf6d14e6779d3f24f07b2cfa90352cfec4acc5aab8f1ac7f146fae8"
 dependencies = [
  "serde_derive",
 ]
 
 [[package]]
 name = "serde_derive"
-version = "1.0.126"
+version = "1.0.127"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "963a7dbc9895aeac7ac90e74f34a5d5261828f79df35cbed41e10189d3804d43"
+checksum = "a024926d3432516606328597e0f224a51355a493b49fdd67e9209187cbe55ecc"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -1067,13 +1061,12 @@ dependencies = [
 
 [[package]]
 name = "sysinfo"
-version = "0.19.2"
+version = "0.20.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9e7de153d0438a648bb71e06e300e54fc641685e96af96d49b843f43172d341c"
+checksum = "0af066e6272f2175c1783cfc2ebf3e2d8dfe2c182b00677fdeccbf8291af83fb"
 dependencies = [
  "cfg-if",
  "core-foundation-sys",
- "doc-comment",
  "libc",
  "ntapi",
  "once_cell",

cli/Cargo.toml

@@ -8,10 +8,13 @@ edition = "2018"
 
 [dependencies]
 # internal deps
-libsky = { path="../libsky" }
-skytable = { git="https://github.com/skytable/client-rust", branch="next", features=["async", "aio-sslv"], default-features=false }
+libsky = { path = "../libsky" }
+skytable = { git = "https://github.com/skytable/client-rust", branch = "next", features = [
+    "async",
+    "aio-sslv",
+], default-features = false }
 # external deps
-tokio = { version="1.9.0", features=["full"] }
-clap = { version="2.33.3", features=["yaml"] }
+tokio = { version = "1.9.0", features = ["full"] }
+clap = { version = "2.33.3", features = ["yaml"] }
 rustyline = "8.2.0"
 crossterm = "0.20.0"

libsky/Cargo.toml

@@ -8,7 +8,9 @@ edition = "2018"
 
 [dependencies]
 # internal deps
-skytable = { git="https://github.com/skytable/client-rust", branch="next", features=["dbg"], default-features=false }
+skytable = { git = "https://github.com/skytable/client-rust", branch = "next", features = [
+    "dbg",
+], default-features = false }
 # external deps
 lazy_static = "1.4.0"
 termcolor = "1.1.2"

server/Cargo.toml

@@ -9,12 +9,12 @@ build = "build.rs"
 # internal deps
 skytable = { git = "https://github.com/skytable/client-rust", branch = "next", default-features = false }
 sky_macros = { path = "../sky-macros" }
+libsky = { path = "../libsky" }
 # external deps
 tokio = { version = "1.9.0", features = ["full"] }
 ahash = "0.7.4"
 bytes = "1.0.1"
-libsky = { path = "../libsky" }
-serde = { version = "1.0.126", features = ["derive"] }
+serde = { version = "1.0.127", features = ["derive"] }
 toml = "0.5.8"
 clap = { version = "2.33.3", features = ["yaml"] }
 env_logger = "0.9.0"
@@ -23,7 +23,7 @@ chrono = "0.4.19"
 regex = "1.5.4"
 tokio-openssl = "0.6.2"
 openssl = { version = "0.10.35", features = ["vendored"] }
-hashbrown = { version = "*", features = ["raw"] }
+hashbrown = { version = "0.11.2", features = ["raw"] }
 parking_lot = "0.11.1"
 num_cpus = "1.13.0"
 
@@ -51,4 +51,4 @@ rand = "0.8.4"
 bincode = "1.3.3"
 [target.'cfg(unix)'.dependencies]
 # external deps
-libc = "0.2.98"
+libc = "0.2.99"

server/src/corestore/buffers.rs

@@ -36,7 +36,7 @@ macro_rules! push_self {
 
 macro_rules! lut {
     ($e:expr) => {
-        PAIR_MAP_LUT[($e) as usize]
+        *PAIR_MAP_LUT.get_unchecked(($e) as usize)
     };
 }
 

server/src/corestore/map/bref.rs

@@ -37,22 +37,27 @@ use parking_lot::RwLockWriteGuard;
 use std::collections::hash_map::RandomState;
 use std::sync::Arc;
 
+/// A read-only reference to a bucket
 pub struct Ref<'a, K, V> {
-    _guard: RwLockReadGuard<'a, LowMap<K, V>>,
+    _g: RwLockReadGuard<'a, LowMap<K, V>>,
     k: &'a K,
     v: &'a V,
 }
 
 impl<'a, K, V> Ref<'a, K, V> {
-    pub const fn new(_guard: RwLockReadGuard<'a, LowMap<K, V>>, k: &'a K, v: &'a V) -> Self {
-        Self { _guard, k, v }
+    /// Create a new reference
+    pub(super) const fn new(_g: RwLockReadGuard<'a, LowMap<K, V>>, k: &'a K, v: &'a V) -> Self {
+        Self { _g, k, v }
     }
+    /// Get a ref to the key
     pub const fn key(&self) -> &K {
         self.k
     }
+    /// Get a ref to the value
     pub const fn value(&self) -> &V {
         self.v
     }
+    /// Get a ref to the key/value pair
     pub const fn pair(&self) -> (&K, &V) {
         let Self { k, v, .. } = self;
         (k, v)
@@ -69,32 +74,35 @@ impl<'a, K, V> Deref for Ref<'a, K, V> {
 unsafe impl<'a, K: Send, V: Send> Send for Ref<'a, K, V> {}
 unsafe impl<'a, K: Sync, V: Sync> Sync for Ref<'a, K, V> {}
 
+/// A r/w ref to a bucket
 pub struct RefMut<'a, K, V> {
-    guard: RwLockWriteGuard<'a, LowMap<K, V>>,
+    _g: RwLockWriteGuard<'a, LowMap<K, V>>,
     k: &'a K,
     v: &'a mut V,
 }
 
 impl<'a, K, V> RefMut<'a, K, V> {
-    pub fn new(guard: RwLockWriteGuard<'a, LowMap<K, V>>, k: &'a K, v: &'a mut V) -> Self {
-        Self { guard, k, v }
+    /// Create a new ref
+    pub(super) fn new(_g: RwLockWriteGuard<'a, LowMap<K, V>>, k: &'a K, v: &'a mut V) -> Self {
+        Self { _g, k, v }
     }
+    /// Get a ref to the key
     pub const fn key(&self) -> &K {
         self.k
     }
+    /// Get a ref to the value
     pub const fn value(&self) -> &V {
         self.v
     }
+    /// Get a mutable ref to the value
     pub fn value_mut(&mut self) -> &mut V {
         self.v
     }
+    /// Get a ref to the k/v pair
     pub fn pair(&mut self) -> (&K, &V) {
         let Self { k, v, .. } = self;
         (k, v)
     }
-    pub fn downgrade_ref(self) -> Ref<'a, K, V> {
-        Ref::new(RwLockWriteGuard::downgrade(self.guard), self.k, self.v)
-    }
 }
 
 impl<'a, K, V> Deref for RefMut<'a, K, V> {
@@ -113,6 +121,7 @@ impl<'a, K, V> DerefMut for RefMut<'a, K, V> {
 unsafe impl<'a, K: Send, V: Send> Send for RefMut<'a, K, V> {}
 unsafe impl<'a, K: Sync, V: Sync> Sync for RefMut<'a, K, V> {}
 
+/// A reference to an occupied entry
 pub struct OccupiedEntry<'a, K, V, S> {
     guard: RwLockWriteGuard<'a, LowMap<K, V>>,
     elem: (&'a K, &'a mut V),
@@ -121,7 +130,8 @@ pub struct OccupiedEntry<'a, K, V, S> {
 }
 
 impl<'a, K: Hash + Eq, V, S: BuildHasher> OccupiedEntry<'a, K, V, S> {
-    pub fn new(
+    /// Create a new occupied entry ref
+    pub(super) fn new(
         guard: RwLockWriteGuard<'a, LowMap<K, V>>,
         key: K,
         elem: (&'a K, &'a mut V),
@@ -134,15 +144,19 @@ impl<'a, K: Hash + Eq, V, S: BuildHasher> OccupiedEntry<'a, K, V, S> {
             hasher,
         }
     }
+    /// Get a ref to the key
     pub fn key(&self) -> &K {
         self.elem.0
     }
+    /// Get a ref to the value
     pub fn value(&self) -> &V {
         self.elem.1
     }
+    /// Insert a value into this bucket
     pub fn insert(&mut self, other: V) -> V {
         mem::replace(self.elem.1, other)
     }
+    /// Remove this element from the map
     pub fn remove(mut self) -> V {
         let hash = super::make_hash::<K, K, S>(&self.hasher, &self.key);
         unsafe {
@@ -157,6 +171,7 @@ impl<'a, K: Hash + Eq, V, S: BuildHasher> OccupiedEntry<'a, K, V, S> {
 unsafe impl<'a, K: Send, V: Send, S> Send for OccupiedEntry<'a, K, V, S> {}
 unsafe impl<'a, K: Sync, V: Sync, S> Sync for OccupiedEntry<'a, K, V, S> {}
 
+/// A ref to a vacant entry
 pub struct VacantEntry<'a, K, V, S> {
     guard: RwLockWriteGuard<'a, LowMap<K, V>>,
     key: K,
@@ -164,9 +179,11 @@ pub struct VacantEntry<'a, K, V, S> {
 }
 
 impl<'a, K: Hash + Eq, V, S: BuildHasher> VacantEntry<'a, K, V, S> {
-    pub fn new(guard: RwLockWriteGuard<'a, LowMap<K, V>>, key: K, hasher: S) -> Self {
+    /// Create a vacant entry ref
+    pub(super) fn new(guard: RwLockWriteGuard<'a, LowMap<K, V>>, key: K, hasher: S) -> Self {
         Self { guard, key, hasher }
     }
+    /// Insert a value into this bucket
     pub fn insert(mut self, value: V) -> RefMut<'a, K, V> {
         unsafe {
             let hash = super::make_insert_hash::<K, S>(&self.hasher, &self.key);
@@ -180,28 +197,34 @@ impl<'a, K: Hash + Eq, V, S: BuildHasher> VacantEntry<'a, K, V, S> {
             RefMut::new(self.guard, kptr, vptr)
         }
     }
+    /// Turns self into a key (effectively freeing up the entry for another thread)
     pub fn into_key(self) -> K {
         self.key
     }
+    /// Get a ref to the key
     pub fn key(&self) -> &K {
         &self.key
     }
 }
 
+/// An entry, either occupied or vacant
 pub enum Entry<'a, K, V, S = RandomState> {
     Occupied(OccupiedEntry<'a, K, V, S>),
     Vacant(VacantEntry<'a, K, V, S>),
 }
 
 impl<'a, K, V, S> Entry<'a, K, V, S> {
+    /// Check if an entry is occupied
     pub const fn is_occupied(&self) -> bool {
         matches!(self, Self::Occupied(_))
     }
+    /// Check if an entry is vacant
     pub const fn is_vacant(&self) -> bool {
         matches!(self, Self::Vacant(_))
     }
 }
 
+/// A shared ref to a key
 pub struct RefMulti<'a, K, V> {
     _g: Arc<RwLockReadGuard<'a, LowMap<K, V>>>,
     k: &'a K,
@@ -209,15 +232,19 @@ pub struct RefMulti<'a, K, V> {
 }
 
 impl<'a, K, V> RefMulti<'a, K, V> {
+    /// Create a new shared ref
     pub const fn new(_g: Arc<RwLockReadGuard<'a, LowMap<K, V>>>, k: &'a K, v: &'a V) -> Self {
         Self { _g, k, v }
     }
+    /// Get a ref to the key
     pub const fn key(&self) -> &K {
         self.k
     }
+    /// Get a ref to the value
     pub const fn value(&self) -> &V {
         self.v
     }
+    /// Get a ref to the k/v pair
     pub const fn pair(&self) -> (&K, &V) {
         let Self { k, v, .. } = self;
         (k, v)
@@ -234,6 +261,7 @@ impl<'a, K, V> Deref for RefMulti<'a, K, V> {
 unsafe impl<'a, K: Sync, V: Sync> Sync for RefMulti<'a, K, V> {}
 unsafe impl<'a, K: Send, V: Send> Send for RefMulti<'a, K, V> {}
 
+/// A shared r/w ref to a bucket
 pub struct RefMultiMut<'a, K, V> {
     _g: Arc<RwLockWriteGuard<'a, LowMap<K, V>>>,
     k: &'a K,
@@ -241,22 +269,28 @@ pub struct RefMultiMut<'a, K, V> {
 }
 
 impl<'a, K, V> RefMultiMut<'a, K, V> {
+    /// Create a new shared r/w ref
     pub fn new(_g: Arc<RwLockWriteGuard<'a, LowMap<K, V>>>, k: &'a K, v: &'a mut V) -> Self {
         Self { _g, k, v }
     }
+    /// Get a ref to the key
     pub const fn key(&self) -> &K {
         self.k
     }
+    /// Get a ref to the value
     pub const fn value(&self) -> &V {
         self.v
     }
+    /// Get a mutable ref to the value
     pub fn value_mut(&mut self) -> &mut V {
         self.v
     }
+    /// Get a ref to the k/v pair
     pub fn pair(&self) -> (&K, &V) {
         let Self { k, v, .. } = self;
         (k, v)
     }
+    /// Get a mutable ref to the k/v (k, mut v) pair
     pub fn pair_mut(&mut self) -> (&K, &mut V) {
         let Self { k, v, .. } = self;
         (k, v)

server/src/corestore/map/iter.rs

@@ -35,6 +35,7 @@ use parking_lot::RwLockWriteGuard;
 use std::collections::hash_map::RandomState;
 use std::sync::Arc;
 
+/// An owned iterator for a [`Skymap`]
 pub struct OwnedIter<K, V, S = RandomState> {
     map: Skymap<K, V, S>,
     cs: usize,
@@ -80,6 +81,7 @@ unsafe impl<K: Sync, V: Sync, S> Sync for OwnedIter<K, V, S> {}
 type BorrowedIterGroup<'a, K, V> = (RawIter<(K, V)>, Arc<RwLockReadGuard<'a, LowMap<K, V>>>);
 type BorrowedIterGroupMut<'a, K, V> = (RawIter<(K, V)>, Arc<RwLockWriteGuard<'a, LowMap<K, V>>>);
 
+/// A borrowed iterator for a [`Skymap`]
 pub struct BorrowedIter<'a, K, V, S = RandomState> {
     map: &'a Skymap<K, V, S>,
     cs: usize,
@@ -131,6 +133,7 @@ impl<'a, K, V, S> Iterator for BorrowedIter<'a, K, V, S> {
 unsafe impl<'a, K: Send, V: Send, S> Send for BorrowedIter<'a, K, V, S> {}
 unsafe impl<'a, K: Sync, V: Sync, S> Sync for BorrowedIter<'a, K, V, S> {}
 
+/// A borrowed iterator with mutable references for a [`Skymap`]
 pub struct BorrowedIterMut<'a, K, V, S> {
     map: &'a Skymap<K, V, S>,
     cs: usize,

server/src/corestore/map/mod.rs

@@ -89,13 +89,14 @@ where
 }
 
 fn get_shard_count() -> usize {
-    (num_cpus::get() * 4).next_power_of_two()
+    (num_cpus::get() * 8).next_power_of_two()
 }
 
 const fn cttz(amount: usize) -> usize {
     amount.trailing_zeros() as usize
 }
 
+/// A striped in-memory map
 pub struct Skymap<K, V, S = RandomState> {
     shards: Box<ShardSlice<K, V>>,
     hasher: S,
@@ -136,6 +137,7 @@ where
 }
 
 impl<K, V> Skymap<K, V, ahash::RandomState> {
+    /// Get a Skymap with the ahash hasher
     pub fn new_ahash() -> Self {
         Skymap::new()
     }
@@ -146,12 +148,15 @@ impl<K, V, S> Skymap<K, V, S>
 where
     S: BuildHasher + Default,
 {
+    /// Create a new Skymap with the default state (or seed) of the hasher
     pub fn new() -> Self {
         Self::with_hasher(S::default())
     }
+    /// Create a new Skymap with the provided capacity
     pub fn with_capacity(cap: usize) -> Self {
         Self::with_capacity_and_hasher(cap, S::default())
     }
+    /// Create a new Skymap with the provided cap and hasher
     pub fn with_capacity_and_hasher(mut cap: usize, hasher: S) -> Self {
         let shard_count = get_shard_count();
         let shift = BITS_IN_USIZE - cttz(shard_count);
@@ -168,24 +173,31 @@ where
             shift,
         }
     }
+    /// Create a new Skymap with the provided hasher
     pub fn with_hasher(hasher: S) -> Self {
         Self::with_capacity_and_hasher(DEFAULT_CAP, hasher)
     }
+    /// Get the len of the Skymap
     pub fn len(&self) -> usize {
         self.shards.iter().map(|s| s.read().len()).sum()
     }
+    /// Get the capacity of the Skymap
     pub fn capacity(&self) -> usize {
         self.shards.iter().map(|s| s.read().capacity()).sum()
     }
+    /// Check if the Skymap is empty
     pub fn is_empty(&self) -> bool {
         self.len() == 0
     }
+    /// Get a borrowed iterator for the Skymap. Bound to the lifetime
     pub fn get_iter(&self) -> BorrowedIter<K, V, S> {
         BorrowedIter::new(self)
     }
+    /// Get a borrowed mutable iterator for the Skymap, Bound to the lifetime
     pub fn get_iter_mut(&self) -> BorrowedIterMut<K, V, S> {
         BorrowedIterMut::new(self)
     }
+    /// Get an owned iterator to the Skymap
     pub fn get_owned_iter(self) -> OwnedIter<K, V, S> {
         OwnedIter::new(self)
     }
@@ -193,12 +205,16 @@ where
 
 // const impls
 impl<K, V, S> Skymap<K, V, S> {
+    /// Get a ref to the stripes
     const fn shards(&self) -> &ShardSlice<K, V> {
         &self.shards
     }
+    /// Determine the shard
     const fn determine_shard(&self, hash: usize) -> usize {
+        // the idea of the shift was inspired by Joel's idea
         (hash << 7) >> self.shift
     }
+    /// Get a ref to the underlying hasher
     const fn h(&self) -> &S {
         &self.hasher
     }
@@ -211,6 +227,7 @@ where
     K: Eq + Hash,
     S: BuildHasher + Clone,
 {
+    /// Insert a key/value into the Skymap
     pub fn insert(&self, k: K, v: V) -> Option<V> {
         let hash = make_insert_hash::<K, S>(&self.hasher, &k);
         let idx = self.determine_shard(hash as usize);
@@ -226,6 +243,7 @@ where
             // end critical section
         }
     }
+    /// Remove a key/value from the Skymap
     pub fn remove<Q>(&self, k: &Q) -> Option<(K, V)>
     where
         K: Borrow<Q>,
@@ -243,6 +261,7 @@ where
             // end critical section
         }
     }
+    /// Remove a key/value from the Skymap if it satisfies a certain condition
     pub fn remove_if<Q>(&self, k: &Q, f: impl FnOnce(&K, &V) -> bool) -> Option<(K, V)>
     where
         K: Borrow<Q>,
@@ -271,6 +290,7 @@ where
 
 // lt impls
 impl<'a, K: 'a + Hash + Eq, V: 'a, S: BuildHasher + Clone> Skymap<K, V, S> {
+    /// Get a ref to an entry in the Skymap
     pub fn get<Q>(&'a self, k: &Q) -> Option<Ref<'a, K, V>>
     where
         K: Borrow<Q>,
@@ -293,6 +313,7 @@ impl<'a, K: 'a + Hash + Eq, V: 'a, S: BuildHasher + Clone> Skymap<K, V, S> {
         }
     }
 
+    /// Get a mutable ref to an entry in the Skymap
     pub fn get_mut<Q>(&'a self, k: &Q) -> Option<RefMut<'a, K, V>>
     where
         K: Borrow<Q>,
@@ -314,6 +335,7 @@ impl<'a, K: 'a + Hash + Eq, V: 'a, S: BuildHasher + Clone> Skymap<K, V, S> {
             // end critical section
         }
     }
+    /// Get an entry for in-place mutation
     pub fn entry(&'a self, key: K) -> Entry<'a, K, V, S> {
         let hash = make_insert_hash::<K, S>(self.h(), &key);
         let idx = self.determine_shard(hash as usize);
@@ -336,6 +358,7 @@ impl<'a, K: 'a + Hash + Eq, V: 'a, S: BuildHasher + Clone> Skymap<K, V, S> {
             // end critical section
         }
     }
+    /// Check if the Skymap contains the provided key
     pub fn contains_key<Q>(&self, key: &Q) -> bool
     where
         K: Borrow<Q>,
@@ -343,16 +366,40 @@ impl<'a, K: 'a + Hash + Eq, V: 'a, S: BuildHasher + Clone> Skymap<K, V, S> {
     {
         self.get(key).is_some()
     }
+    /// Clear out all the entries in the Skymap
     pub fn clear(&self) {
         self.shards().iter().for_each(|shard| shard.write().clear())
     }
 }
 
+// cloned impls
+impl<'a, K: Clone, V: Clone, S: BuildHasher> Skymap<K, V, S> {
+    pub fn get_cloned<Q>(&'a self, k: &Q) -> Option<V>
+    where
+        K: Borrow<Q>,
+        Q: Hash + Eq + ?Sized,
+    {
+        let hash = make_hash::<K, Q, S>(self.h(), k);
+        let idx = self.determine_shard(hash as usize);
+        unsafe {
+            // begin critical section
+            let lowtable = self.get_rshard_unchecked(idx);
+            match lowtable.get(hash, ceq(k)) {
+                Some((_kptr, ref vptr)) => Some(vptr.clone()),
+                None => None,
+            }
+            // end critical section
+        }
+    }
+}
+
 // inner impls
 impl<'a, K: 'a, V: 'a, S> Skymap<K, V, S> {
+    /// Get a rlock to a certain stripe
     unsafe fn get_rshard_unchecked(&'a self, shard: usize) -> SRlock<'a, K, V> {
         self.shards.get_unchecked(shard).read()
     }
+    /// Get a wlock to a certain stripe
     unsafe fn get_wshard_unchecked(&'a self, shard: usize) -> SWlock<'a, K, V> {
         self.shards.get_unchecked(shard).write()
     }

sky-bench/Cargo.toml

@@ -8,12 +8,12 @@ edition = "2018"
 
 [dependencies]
 # internal deps
-skytable = { git="https://github.com/skytable/client-rust", branch="next" }
-libsky = { path="../libsky" }
-libstress = { path="../libstress" }
+skytable = { git = "https://github.com/skytable/client-rust", branch = "next" }
+libsky = { path = "../libsky" }
+libstress = { path = "../libstress" }
 # external deps
 rand = "0.8.4"
 devtimer = "4.0.1"
-clap = { version="2.33.3", features=["yaml"] }
-serde = { version="1.0.126", features=["derive"] }
+clap = { version = "2.33.3", features = ["yaml"] }
+serde = { version = "1.0.127", features = ["derive"] }
 serde_json = "1.0.66"

stress-test/Cargo.toml

@@ -12,7 +12,7 @@ libstress = { path = "../libstress" }
 skytable = { git = "https://github.com/skytable/client-rust.git", branch = "next", features = [
     "dbg",
 ] }
-sysinfo = "0.19.2"
+sysinfo = "0.20.0"
 devtimer = "4.0.1"
 # external deps
 env_logger = "0.9.0"