Basic MD5 hash added

kernel/tests/s10_benchmarks.rs

@@ -1071,12 +1071,12 @@ fn s10_memhash_benchmark() {
         let mut p = spawn_nrk(&cmdline)?;
 
         // Parse lines like
-        // `init::vmops: 1,maponly,1,4096,10000,1000,634948`
+        // `init::memhash: thread_id,memhash,operations,cur_cores,tot_cores`
         // write them to a CSV file
         let expected_lines = if cfg!(feature = "smoke") {
             3
         } else {
-            (cores * (cores + 1)) / 2 // sum from i=1 to n of i
+            (with_cores * (with_cores + 1)) / 2 // sum from i=1 to n of i
         };
 
         for _i in 0..expected_lines {
@@ -1111,5 +1111,4 @@ fn s10_memhash_benchmark() {
     };
 
     check_for_successful_exit(&cmdline, qemu_run(cores), output.clone());
-    // println!("Output: {:?}", output);
 }

usr/init/Cargo.toml

@@ -25,6 +25,8 @@ lazy_static =  { version = "1.4", default_features = false }
 cstr_core = { version = "0.2.3", default-features = false }
 spin = { version = "0.5.2", default_features = false }
 hashbrown = { version = "0.11", features = [ "nightly" ] }
+md-5 = { version = "0.10.6", default-features = false }
+base64ct = "1.6.0"
 
 [features]
 default = []
@@ -41,8 +43,8 @@ test-upcall = []
 test-scheduler = []
 test-scheduler-smp = []
 test-syscalls = []
-test-rump-tmpfs = [ "rumprt" ]
-test-rump-net = [ "rumprt" ]
+test-rump-tmpfs = ["rumprt"]
+test-rump-net = ["rumprt"]
 test-fs = []
 test-fs-prop = []
 test-pmem-alloc = []
@@ -65,19 +67,4 @@ smoke = []
 # Do latency measurements in benchmarks
 latency = []
 
-all-tests = [
-    "test-print",
-    "test-map",
-    "test-alloc",
-    "test-upcall",
-    "test-scheduler",
-    #"test-scheduler-smp",  # Doesn't return
-    "test-syscalls",
-    "test-rump-tmpfs",
-    "test-rump-net",
-    "test-fs",
-    "test-phys-alloc",
-    # "test-request-core-remote", TODO: used only for rackscale tests right now
-    #"test-fs-prop", # needs userspace
-    #"test-pmem-alloc", # needs SMP
-]
+all-tests = ["test-print", "test-map", "test-alloc", "test-upcall", "test-scheduler", "test-syscalls", "test-rump-tmpfs", "test-rump-net", "test-fs", "test-phys-alloc"]

usr/init/src/memhash/mod.rs

@@ -9,12 +9,18 @@ use x86::bits64::paging::VAddr;
 
 use lineup::tls2::{Environment, SchedulerControlBlock};
 
+use base64ct::{Base64, Encoding};
+use md5::{Digest, Md5};
+
 static POOR_MANS_BARRIER: AtomicUsize = AtomicUsize::new(0);
 
 // Hash function
 // Equivalent to 1 operation
-fn hashmem(core_id: usize) -> u64 {
-    0
+fn hashmem(core_id: usize) {
+    let mut hasher = Md5::new();
+    hasher.update(b"hello world");
+    let hash = hasher.finalize();
+    // Base64::encode_string(&hash);
 }
 
 fn thread_routine(core_id: usize, cur_cores: usize, tot_cores: usize) {