diff --git a/.gitea/workflows/linux-mips-gcc.yml b/.gitea/workflows/linux-mips-gcc.yml
index c281183..375c4bc 100644
--- a/.gitea/workflows/linux-mips-gcc.yml
+++ b/.gitea/workflows/linux-mips-gcc.yml
@@ -38,11 +38,11 @@ jobs:
       - name: install-tools
         run: |
           sudo apt-get update -y
-          sudo apt-get install -y cmake make g++-mipsel-linux-gnu qemu-user-binfmt
+          sudo apt-get install -y cmake make g++-mipsel-linux-gnu qemu-user-binfmt ninja-build
       - name: configure
         run: |
           mkdir build && cd build
-          cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/mips-linux-gnu.toolchain.cmake -DCMAKE_BUILD_TYPE=${{matrix.build_type}} -DTILE_BUILD_TESTS=ON -DTILE_BUILD_BENCHMARKS=ON ..
+          cmake -GNinja -DCMAKE_TOOLCHAIN_FILE=../toolchains/mips-linux-gnu.toolchain.cmake -DCMAKE_BUILD_TYPE=${{matrix.build_type}} -DTILE_BUILD_TESTS=ON -DTILE_BUILD_BENCHMARKS=ON ..
       - name: build
         run: cmake --build build --target all -j $(nproc)
       - name: test
diff --git a/.gitea/workflows/linux-mips64-gcc.yml b/.gitea/workflows/linux-mips64-gcc.yml
index 4531e39..3425af6 100644
--- a/.gitea/workflows/linux-mips64-gcc.yml
+++ b/.gitea/workflows/linux-mips64-gcc.yml
@@ -39,11 +39,11 @@ jobs:
       - name: install-tools
         run: |
           sudo apt-get update -y
-          sudo apt-get install -y cmake make g++-mips64el-linux-gnuabi64 qemu-user-binfmt
+          sudo apt-get install -y cmake make g++-mips64el-linux-gnuabi64 qemu-user-binfmt ninja-build
       - name: configure
         run: |
           mkdir build && cd build
-          cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/mips64el-linux-gnuabi64.toolchain.cmake -DCMAKE_BUILD_TYPE=${{matrix.build_type}} -DTILE_BUILD_TESTS=ON -DTILE_BUILD_BENCHMARKS=ON ..
+          cmake -GNinja -DCMAKE_TOOLCHAIN_FILE=../toolchains/mips64el-linux-gnuabi64.toolchain.cmake -DCMAKE_BUILD_TYPE=${{matrix.build_type}} -DTILE_BUILD_TESTS=ON -DTILE_BUILD_BENCHMARKS=ON ..
       - name: build
         run: cmake --build build --target all -j $(nproc)
       - name: test
diff --git a/.gitea/workflows/linux-riscv64-gcc.yml b/.gitea/workflows/linux-riscv64-gcc.yml
index b7fa618..5ddfe11 100644
--- a/.gitea/workflows/linux-riscv64-gcc.yml
+++ b/.gitea/workflows/linux-riscv64-gcc.yml
@@ -40,11 +40,11 @@ jobs:
       - name: install-tools
         run: |
           sudo apt-get update -y
-          sudo apt-get install -y cmake make g++-riscv64-linux-gnu qemu-user-binfmt
+          sudo apt-get install -y cmake make g++-riscv64-linux-gnu qemu-user-binfmt ninja-build
       - name: configure
         run: |
           mkdir build && cd build
-          cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/riscv64-linux-gnu.toolchain.cmake -DCMAKE_BUILD_TYPE=${{matrix.build_type}} -DTILE_BUILD_TESTS=ON -DTILE_BUILD_BENCHMARKS=ON ..
+          cmake -GNinja -DCMAKE_TOOLCHAIN_FILE=../toolchains/riscv64-linux-gnu.toolchain.cmake -DCMAKE_BUILD_TYPE=${{matrix.build_type}} -DTILE_BUILD_TESTS=ON -DTILE_BUILD_BENCHMARKS=ON ..
       - name: build
         run: cmake --build build --target all -j $(nproc)
       - name: test
diff --git a/.gitea/workflows/linux-x64-clang.yml b/.gitea/workflows/linux-x64-clang.yml
index 639234c..9e51524 100644
--- a/.gitea/workflows/linux-x64-clang.yml
+++ b/.gitea/workflows/linux-x64-clang.yml
@@ -32,14 +32,14 @@ jobs:
       - name: install-tools
         run: |
           sudo apt-get update -y
-          sudo apt-get install -y cmake make clang-tools
+          sudo apt-get install -y cmake make clang-tools ninja-build
       - name: configure
         env: 
           CC: clang
           CXX: clang++
         run: |
           mkdir build && cd build
-          cmake -DCMAKE_BUILD_TYPE=${{matrix.build_type}} -DTILE_BUILD_BENCHMARKS=ON -DTILE_BUILD_TESTS=ON ..
+          cmake -GNinja -DCMAKE_BUILD_TYPE=${{matrix.build_type}} -DTILE_BUILD_BENCHMARKS=ON -DTILE_BUILD_TESTS=ON ..
       - name: build
         run: |
           cmake --build build -j $(nproc)
diff --git a/.gitea/workflows/linux-x64-gcc.yml b/.gitea/workflows/linux-x64-gcc.yml
index 752dcbd..676febd 100644
--- a/.gitea/workflows/linux-x64-gcc.yml
+++ b/.gitea/workflows/linux-x64-gcc.yml
@@ -36,11 +36,11 @@ jobs:
       - name: install-tools
         run: |
           sudo apt-get update -y
-          sudo apt-get install -y cmake make
+          sudo apt-get install -y cmake make ninja-build
       - name: configure
         run: |
           mkdir build && cd build
-          cmake -DCMAKE_BUILD_TYPE=${{matrix.build_type}} -DTILE_BUILD_BENCHMARKS=ON -DTILE_BUILD_TESTS=ON ..
+          cmake -GNinja -DCMAKE_BUILD_TYPE=${{matrix.build_type}} -DTILE_BUILD_BENCHMARKS=ON -DTILE_BUILD_TESTS=ON ..
       - name: build
         run: |
           cmake --build build -j $(nproc)
diff --git a/.gitea/workflows/linux-x86-gcc.yml b/.gitea/workflows/linux-x86-gcc.yml
index 19710af..237abff 100644
--- a/.gitea/workflows/linux-x86-gcc.yml
+++ b/.gitea/workflows/linux-x86-gcc.yml
@@ -38,11 +38,11 @@ jobs:
       - name: install-tools
         run: |
           sudo apt-get update -y
-          sudo apt-get install -y cmake make gcc-multilib g++-multilib
+          sudo apt-get install -y cmake make gcc-multilib g++-multilib ninja-build
       - name: configure
         run: |
           mkdir build && cd build
-          cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/host.gcc-m32.toolchain.cmake  -DCMAKE_BUILD_TYPE=${{matrix.build_type}} -DTILE_BUILD_BENCHMARKS=ON -DTILE_BUILD_TESTS=ON ..
+          cmake -GNinja -DCMAKE_TOOLCHAIN_FILE=../toolchains/host.gcc-m32.toolchain.cmake -DCMAKE_BUILD_TYPE=${{matrix.build_type}} -DTILE_BUILD_BENCHMARKS=ON -DTILE_BUILD_TESTS=ON ..
       - name: build
         run: |
           cmake --build build -j $(nproc)
diff --git a/tile/base/internal/time_keeper_test.cc b/tile/base/internal/time_keeper_test.cc
index b085258..4418bb5 100644
--- a/tile/base/internal/time_keeper_test.cc
+++ b/tile/base/internal/time_keeper_test.cc
@@ -12,8 +12,8 @@ namespace tile {
 namespace internal {
 
 constexpr auto kTestDuration = std::chrono::seconds(5);
-constexpr auto kInterval     = std::chrono::milliseconds(50);
-constexpr auto kTimerNum     = 100;
+constexpr auto kInterval     = std::chrono::milliseconds(200);
+constexpr auto kTimerNum     = 1000;
 
 TEST(TimeKeeper, OneFastTimer)
 {